Brazzak, you're move!

Oh, and Heilamin take inspiration! 

Charging recklessly to the helm, Brazzak attempts to gain the attention of the fishman attacking the helmsman.

AoO from Sahuagin 3

Claw Attack: 18 Damage: 4

Dropping the Sahuagin at the wheel, the dragonborn farmboy turns and charges the sahuagin remaining on deck.

Heilamin sees Brazzak taking out Sahaugin's, and remarks, "Holy smokes, farm boy, ... AS YOU WISH! Remind me never to get on your bad side."

"Ma always said that there's only two times ya'll could be on mah bad side...

...be in front'a me at chow time...

...or be behind me after chow time!"

Sahuagin 2 and 4 attack Modron, blood frenzied. Sahuagin 3 attacks Brazzak, blood frenzied. Lonely Sahuagin 8 attacks Renee, blood frenzied. 

Sahuagin 2: Claw Attack: 23 Damage: 9
Sahuagin 2:  Bite Attack: 13 Damage: 5
Sahuagin 3: Claw Attack: 23 Damage: 6
Sahuagin 3:  Bite Attack: 20 Damage: 5
Sahuagin 4: Claw Attack: 5 Damage: 5
Sahuagin 4:  Bite Attack: 13 Damage: 5
Sahuagin 8: Claw Attack: 16 Damage: 4
Sahuagin 8:  Bite Attack: 17 Damage: 3

Captain Andy sheathes his weapon and focuses on yelling out to the other sailor's orders and manning the ship. 

Round 5 Initiative order:
Renee
Heilamin
Modron
Mackenzie
Sahuagin Champion 1
Brazzak
Sahuagin 1-5
Sahuagin 6-10

Everyone gets their actions before the Sahuagin. Feel free to go out of order if needed. 

Remaining HP (Renee, could you double check damage on 8? I might have missed an attack)

Sahuagin 2: 22HP
Sahaugin 3: 8HP
Sahuagin  4: 8HP
Sahaugin 8: 2HP

OOC: Posting on phone...missed some brackets on damage rolls so had to edit them in after attack rolls

Seeing that the others have assured Capt Andy's safety Mackenzie changes direction and charges toward the two Sahuagin at the Nothern stairs, trailing his halberd behind him as he runs then bringing it in a vicious upward arc at Sahuagin 4, critically hitting it and sending it flying back over the railing

Attack: 27 Damage: 12 (see spoiler)

then follows through that strike with a spinning overhead chop at Sahuagin 2 as he steps onto the stairs

Attack: 8 Damage: 9 (see spoiler)

 and then takes a bonus action attack (Great Weapon Master) to thrust at it again... 

 Attack: 14 Damage: 5

finishing his turn on the bottom of the stairs having defeated two more of the fish warriors....

OOC: I don't think 8 has been hit yet. I think all mine previously missed. Also modified to Muggshill suggestion. If not okay, then Ape will still attack #4

Renee grunts as the bite and claws sink into her. "Damn, that hurts." Calling the ape to her, the ape attacks #8 as well.

Attack: 14 Damage: 4

 Sneak attack damage: 14

Ape's attack. 

Attack: 11 Damage: 8

Attack: 10 Damage: 6

Sahuagin 2 and 4 fall to Mackenzie's blade. Renee is able to defeat Sahuagin 8 (I said 2HP left, meant 20HP left). 

Heilamin, Brazzak, a lonely Sahuagin looks at you from the upper deck. You're up!

Heilamin casts Charm Person at 3rd Level on Sahaugin 3, Sahaugin 2, and Sahaugin 4 (assuming that I can see 2 and 4 as well from the rail on the top deck). These three have to make a DC 15 Wisdom Save (though they do so with advantage). If they fail, they are charmed and regard me as friends until they are harmed. To those that are charmed, Heilamin remarks, "My dear sirs Sahaugin, I'm afraid we've run out of biscuits and tea and that your welcome as guests on our ship has expired. If you would be so kind as to convince your remaining Sahaugin companions to join you for a swim, I would be much obliged." And Heilamin does a prolonged bow. 

As a bonus action, Heilamin will give Bardic Inspiration to Renee. To "Who let the dogs out?"  "Renee, who let these sharks out? Hmmm, hmm, hhmmm? You can do it!" (You have a 1d8 inspiration die) that you can add to rolls.

Sahuagin 3 WIS Save: 9 vs DC15

The last remaining creature is dazzily looking at you Heilamin. It gets a big toothy smile when it hears the word "swim", turns around, and dives into the ocean with a front flip. Brazzak, you may take an AoO if you wish. This will end combat! 

Whatever the outcome with the last of the Sahuagin, Mackenzie will make his way up the stairs wearily, blood still seeping out of the many gashes he has sustained, and makes his way over to Captain Andy and apologises "I am sorry that we could not defend the crew that have fallen" and then lays on hands the Captain for 8HP before asking "Are any of them still alive" after which he will check those that are not near one of the party members and cast Cure Wounds on the first two that can be saved.  If all are dead he will return to the Captain and ask "I can provide you more healing if you need" and will cast spell]Cure Wounds[/spell] up to twice. He then asks "Is that kind of attack normal at sea - I doubt you would have survived had we not been on board"

OOC: I figure after that Mackenzie will be taking a long rest......

The boat calms down as the fighting has stopped. The sailors get the boat in a stable position and then begin to clean shop. The Sahuagin bodies are thrown over board with no regard, some sailors even kicking the groin areas before throwing them. These creatures did not carry any money or special items with them. Just barnacle covered spears for the Champions and seaweed covered loin clothes for the rest. The blood is scrubbed up by the boy seamen. 

Captain Andy thanks Mackenize, and the others. "Ey lad, I reckin' without ye help...I be in Davey John's locker about now. I thank ye. These creatures are just scum of the ocean. They be about, lookin' fer a ship to plunder. Reckin' we looked like a boat to plunder. Maybe wanted some fresh land meat to feast on. Omerian Ocean is filled with dangers, don't need no reason."

The first mate and the four sailors who passed are given a proper ocean burial, with the assistance of anyone else who liked to partake. After the funerals and several minutes of silence. Captain Andy calls down the barrelman from the crow's nest. Berry Barrelman is prompted to First Mate with hazzahs and whoops from the other sailors. Captain Andy cracks open a few bottles of rum in celebration! 

Brazzak wonders aloud.

"Looks like if'n Berry's gonna be down here on deck now, they's gonna need summin new up in tha crowie nest. Wonder what it's like up thar?"

...and he begins approaching the mast.

How much does Brazzak weigh :P

 295 before the plate armor.