The solution is based on the American version of the game, so it is possible to find differences in the Spanish version.
Mission 1: Calm Before The Storm
Locate the Templar Admiral's ship with the telescope.
Use the mortar to surprise the Templar fleet.
Locate the Templar Admiral's Ship with the Spyglass When you start the mission, take out the spyglass (press the R2 / RT button) and look out over the horizon to notice a fleet of ships. Zoom in on Man O 'War to complete the first objective.
Using the Mortar to Surprise the Templar Fleet As soon as you have identified Man O 'War, press the L2 / LT button to move to the mortar cannon. Aim the water near the ships (DO NOT aim the ships) and fire a mortar round to get their attention.
Now that you have the fleet's attention, go full sail and defend yourself! Fire mortars in Man O 'War and fire heavy shots at the brig and shuttles. Fire to sink the smaller ships and then destroy Man O 'War last.
Once you've seriously damaged it, get on board and be ready to fight! Adewale only has hidden blades and dart strings, but the fight shouldn't be too difficult. After taking out the ship's captain and most of the crew, enter the hatch.
Approach the back of the room, take out the guards and the Templar Admiral. Once the room is cleared, retrieve the Captain's delivery package and exit the top to start a cutscene.
MISSION NOTE: THE SINKING OF THE SHIP
If you have decided to sink Man O 'War instead of going aboard, the only way to retrieve the Templar Pack will be to dive underwater to get it.
Just swim to the rear of the sunken ship to find the treasure next to the dead admiral. From there, quickly swim back to the diving bell to trigger the next cutscene.
After the cutscene, continue with the sails and advance. Avoid fighting the Templar ships and set sail for the storm. Jets of water will block the way, avoiding the first will be difficult, navigate around and be careful. After the first jet of water, turn left to the next intermediate point and deal with the rogue waves. Go to the next intermediate point to complete the mission.
Mission 2: A Common Enemy
There are no optional objectives for this mission.
KILL THE SUPERVISOR
When the mission begins, quickly equip the dart rope and chase the overseer. Throw the dart rope at him to stop him, get in close contact and assassinate him to activate the next target.
Make your way into town and you will be given several optional activities to perform. As you make your way to the gentleman's position, free a couple of slaves while you're at it. There will be many areas where it will be possible to free the slaves, clear the way with your weapons!
LOCATE / TALK TO THE GENTLEMAN
After you finish freeing several slaves, try to find the lord next to the auction block. Use the eagle eye to find and follow him. Fortunately, the man won't travel too far and will enter a nearby brothel.
JOIN THE BOARD / START THE CONVERSATION
Enter the brothel and move towards the crowd next to the staircase to activate the eavesdropper. Move away from the crowd and throng as you listen inside the convoy. At the end of the conversation, approach Bastienne to complete the mission.
Mission 3: Laying The First Brick
Push an overseer into the water.
Carry out an aerial assassination from a height of 10 meters.
When the mission begins, head to the plantation to find Bastienne's contact (while you are there, be sure to free some slaves from their captors, just to do so).
When you reach the plantation area, grab the stick and use the eagle's eye to locate the contact on the western side of the plantation. From here, it will be possible to see the contact and whistle or take time to clear the plantation.
MISSION NOTE: FREE PLANTING
Although not part of the mission, Adewale can free the plantation by killing the overseers. In the same way that Edward raided the plantations in AC 4, he will take out all the guards with stealth kills and sabotage the alarm bell.
Once a total of twenty overseers are killed, a cutscene shows Adewale freeing the slaves "abandoning" the plantation. Once the plantation is abandoned, the area is cleared of the enemy.
After clearing the plantation (or not), approach Bastienne's contact and hum the melody to receive the next position. From there, run to the woods in the caves where several bad guys meet.
PUSH A SURVEILLANCE INTO THE WATER
When the cutscene ends, walk over the bridge to the mini-stage overlooking the water. Let the bad guys see to start the conflict. To push a guard into the water, you will need to press the Circle / B button twice when they attack.
If done correctly, Adewale will block the attack and then you will push the villain off the cliff and into the water below.
CARRY OUT AN AIRCRAFT MURDER FROM A HEIGHT OF 10 METERS
There will be a couple of villains found at the bottom of the caves. Just jump on one of them and assassinate him to complete the objective.
After you have eliminated most of the baddies and found Bastienne's contact, he will ask you to kill the fleeing guards on the rowboat. Use the path to the left and run along the cliff.
Use the rope to swing to the opposite side and then run and jump over the rocks to the small island outside the bay. Keep running towards the rowboat to trigger a cutscene and complete the mission.
POST-MISSION GOALS: BUY AMMUNITION / FREE 20 ABANDONED
After the mission, you will receive an old shotgun as a weapon. Approach the abandoned nearby and purchase some ammo from him. From there, you will receive a short tutorial on using the old shotgun.
To unlock the next mission, you will need to free 20 abandoned. Go back to the city and continue to free the slaves to recruit the abandoned. After 20 abandoned are released, the next mission will be unlocked.
Mission 4: A Ship of His Own
Use Bastienne's girls to distract the guards.
Distract 4 guards with firecrackers.
DISTRACT 4 GUARDS WITH FIRES
For this goal, Hades simply has to throw a firecracker on the ground to attract the attention of all nearby guards. When you start the mission, throw a firecracker on the ground and two guards will come out. Assassinate them from above for a double kill. From here, use the firecrackers on two other guards to complete the objective.
USING BASTIENNE'S GIRLS TO DISTRACT THE GUARDS
As you approach the port, there will be several groups of women nearby. Approach one of the groups and "rent them". From there, go to any of the guards and then use the distract option to complete the objective.
The last thing to do is to destroy the watchtower of a powder magazine. There will be several red icons scattered around the restricted area, so you can take out the enemies near the barrels and then take them to the tower.
Hide in the bushes and use a sleep dart on the sniper on the tower. From there, quickly get the barrel under the tower and light it (take out the guards in your way before the sniper wakes up) to blow up the tower.
With the guards distracted, run to the water and swim to the rear of the nearby brig and climb up from the left side. Use the beams to climb to the top (the guards on the bridge won't see you) and then take out the two snipers stationed above. Climb to the topmost tip to complete the mission.
POST-MISSION GOALS: RELEASE A SHIP OF SLAVES
To unlock the next mission, you will need to free a slave ship. Slave ships, brigantines carrying up to 100 slaves and being escorted by several guard ships. Some slave ships can have up to four guard escorts including a Man O 'War!
Go to the slave ship and get ready to take out these supplies of guards. Fire mortars at the enemies (but not the slave ship) and use a lot of cannon shots on the other ships. After you've eliminated everyone, board the slave ship and eliminate the crew.
It may take several attempts to take out enemy supplies due to a ship not quite up to par, but it can be done! Then free the slave ship to gain more abandoned members and to unlock the next mission.
Mission 5: Lifting The Veil
Free the slaves from the barracks.
Kill the overseer who led the slaves.
MISSION NOTE: SAILING IN THE OPEN SEA
Before starting this mission, it is time to sail the seas of the West Indies and plunder ships for improvements. At this point in the game, Adewale will be able to upgrade the Believe Expert to 100% and find 95% of all weapons scattered around the islands.
When the mission begins, follow Bastienne and listen to her conversation to receive your next objective.
Follow the slaves into the Governor's palace and place the chest at the middle point. From there, follow the slaves into the barracks and approach the midpoint to activate the next objective.
KILL THE SUPERVISOR WHO GUIDED THE SLAVES
Quietly and quickly take out the first guard in front of you and then hide in the nearby bushes. Activate the Eagle Eye and look towards the front gates to find the overseer talking about a guard.
When the coast is cleared, run to the overseer and suffocate him to complete the objective.
The Governor will be on the second floor of the building and to reach him you will have to climb the walls and use the bushes to stay hidden. Approach the palace and use the eagle eye on the second floor to identify the Governor.
From there, take out the passing guard, then go up the building to the second floor and listen to the short conversation.
When prompted, climb to the roof and then use the eagle jump to drop you onto the pile of leaves below. Eliminate the guard and continue following the Governor and his accomplice using the bushes.
Enemies will be walking up and down the palace, so stay in the bushes! After a short conversation, Adewale will be free to leave the palace ... But wait!
RELEASE THE SLAVES FROM THE SHEDS
Before leaving the palace, go back to the area of the shacks full of slaves, eliminate the three guards to complete the objective.
Once done, exit the palace by climbing to the roof of the shack and jumping over the broken fence (don't use the front doors!). From there, return to the brothel to complete the mission.
Mission 6: A Scientific Inquiry
Complete all 5 investigations
Don't kill anyone while you are investigating
After exiting the brothel, go to the harbor captain near the docks. When you get to the place (the department store), it will quickly be surrounded by guards.
Take the path to the left and jump through the opening on the second floor (kill the rifleman here quickly) and then stand right above the harbor captain and his mate to hear the conversation.
COMPLETE ALL 5 INVESTIGATIONS / DON'T KILL ANYONE WHILE INVESTIGATING
The game requires at least three completed investigations, but the objective requires all five. Also, Adewale is not allowed to harm anyone, even if he will be with his bare hands. If you find yourself in a combat situation, do not fight with the guards, but simply run away to restore the level of suspicion and retry the investigation.
Here you will find all five surveys and will explain how to complete them (in no particular order):
SURVEY N ° 1: IDENTIFY THE COURIER
When you approach the brig in the harbor, a courier will jump off the ship and swim ashore.
Quickly run to the shore (get there first) and then face the courier just as he comes out of the water. Loot the courier while he is on the ground to complete the investigation.
INVESTIGATION N ° 2: STOLEN THE KEY OF THE SLAVE FENCE
For this investigation, the local fish market vendor wants you to free his employees, now slaves. Locate the person responsible with the keys, in the middle of the city, then approach him to steal it. If you got the key but got caught, simply run away and hide until the threat subsides (don't fight anyone!). With the key in hand, slowly approach the slave enclosure and then free them. Again, if you get caught, run away! With the slaves freed, return to the fisherman at the port to complete the investigation.
SURVEY N ° 3: IDENTIFY THE MESSENGER
This investigation will require you to pursue a messenger to find information from him. The messenger will be relaxing in a hut, but will immediately flee when you see him.
Try to get it and face the messenger to complete the investigation.
SURVEY N ° 4: IDENTIFY THE POSTMAN
The postman will be in a building in a heavily protected area. Climb the nearby fence to locate it.
Fortunately, you can find the postman around the area towards the back, so you can easily walk to him and loot him. You will be spotted, but as soon as Hades reads the letter, the guards will move away.
SURVEY N ° 5: INTERCEPTING SCIENTISTS
Approach the midpoint behind the fence and start intercepting two scientists.
Follow them, they will stop at the corner at the first house, then move again, one of the scientists will stop for a rest in the bathroom. Quickly, climb up the house and jump to the trees to hear from above.
From there, follow them across the rooftops (keep an eye out for any snipers).
When the scientists reach the small shack at the harbor, quickly jump down and move to the corner of the shack and keep listening. If you are quick enough, you may reach the summit in the corner without the guards seeing you. Once the scientists' conversation ends, the goal will be achieved! With all five investigations completed, return to the brothel (avoid all the fighting!) And talk to Bastienne to complete the mission!
Mission 7: Plant The Seeds
Sink the pirate schooners before sinking the brig.
Destroy the pirate flotilla in 6 minutes.
When the mission begins, go to the center of the city and then activate the Eye of the Eagle to find Godin.
Follow Godin as you walk towards the harbor and avoid getting too close. Once Godin reaches the harbor area, hide under the shack and exchange the poster.
Since the shack will be heavily guarded, you'll need to shoot sleep arrows that will put the guards to sleep. Shoot the ones blocking the way, then approach the save point and swap the poster by pressing and holding the Circle / B key. Once done, escape the area to activate the next objective.
SINK THE PIRATE GOLETTE BEFORE YOU SINK THE BRIGANTINO / DESTROY THE PIRATE FLEET IN 6 MINUTES
If you have forgotten, the schooners are the smallest boats and the brig is the semi-large ship with the ram. Make sure you have more parts adapted for the Experto Crede! It will help destroy pirate ships faster.
Set sail and stay within easy reach of the pirate gang. Launch mortars and heavy blows at the schooners to destroy them while avoiding the brig.
Once all the schooners are gone, fire the brig with mortars and leave to complete the mission.
Mission 8: Down with the ship
Receive less than 50% damage during naval combat.
Free 15 slaves.
MISSION NOTE: FULLY EQUIPPED SHIP
Make sure you have Experto Crede 100% updated before taking part in this mission!
When the mission begins, use the spyglass to see the slave ship on the horizon along with the escort ships. There will be three escort frigates protecting the slave ship, so you'll need to launch mortar rounds at them.
RECEIVE LESS THAN 50% DAMAGE
With a fully updated hull, Expert Crede will be able to do very little during naval battle, so keep firing mortar rounds at frigates while staying away. It will take 2-3 well-aimed mortar rounds to destroy each frigate, but you need to be sure to prepare yourself just in case. After two frigates are destroyed, a short cutscene will appear. Now, destroy the third frigate before she sinks the ship with the slaves! With the third frigate down, approach the slave ship, climb aboard it (there will be no enemies aboard) and open the hatch to get inside.
FREE 15 SLAVES
When you enter the slave prison, approach the large metal pegs, interact with them and break them. To break them all, follow the on-screen instructions until the goal is completed and a cutscene appears. The ship will begin to flood, swim to the first intermediate point and open the hatch. Swim to the next set of stages to reach the upper deck. Climb to the top of the sinking ship to complete the mission.
Mission 9: de Fayet's Last Stand
Kill de Fayet with the hot iron.
Kill 5 guards with the old shotgun.
There is absolutely no need to be stealthy when attempting this mission, you can leave with weapons drawn!
KILL 5 GUARDS WITH THE OLD RIFLE
When you reach the front doors of the palace, go up to the four guards and knock them down with a single blow. Quickly reload and then shoot the next alert guard to complete the objective. All the explosions caused will frighten de Fayet who will go running towards the port. Run after him, slowly you will approach, there will be guards ready to sprint towards you, but try to avoid them. Keep following de Fayet until he reaches his destination. Now you must be ready for an all-out brawl!
There will be several guards, runners, captains, brutes, as well as de Fayet, who will want to fight you. Use your attacks on all weaker enemies first, then take on the toughest ones. Don't forget to use a human shield and various smoke bombs to make this fight less difficult.
KILLING DE FAYET WITH A HOT IRON
Eliminate all the enemies until you are alone with de Fayet. Sheathe your weapon and go with your bare hands to face him; wait for him to make the first move. Try to disarm him and then make a defense move on him (don't fight back, otherwise he'll hit you if you do) to make him wobble. Once this is done, kill de Fayet with his own weapon to complete the mission and this expansion, called Freedom Cry!
SOLUTION VIDEO - PLAYLIST
Click here to see the entire video solution of the game!
SOLUTION VIDEO - PART ONE
SOLUTION VIDEO - SECOND PART
SOLUTION VIDEO - THIRD PART