-The ability to modify the SDAR
-Flashlights (Handheld and usable weapon flashlights all under water)
-Being able to attach chem lights to yourself and also throw them underwater
-Dragging people/Carrying people
-A running vault like ST Bunnyhop
-Staying brass (Having shell casing's on the floor after firing also non case less ammo)
-Sea trenches
-Making Foregrips, Grenade Launchers and Bipods/Gripods an attachable item not a separate weapon.
-Maybe a little for in depth character customization? Gloves etc.
(A lot of these features may be in but I would really hope to see them put into the game it would add a lot of awesome things in my opinion)