You could possibly look at adding more civilian style weapons. Kitchen knives, cleavers, machetes, hammers, chainsaws etc

Underwater implementation?

i am very interested in being able to use a knife/other weapons underwater. I understand this might be a difficult thing as most things in arma tend to be but i wanted to see if it's something you will be introducing at some point or even a possibility. Also i am willing to help you on anything you need with my experience in modeling and a little bit of sqf programming, altho i am not sure this will be very helpful for this particular topic.