Mostly its just a real-world speedboat, since the soc-r is really used form u.s forces, especially the Special Boat Team 22, which is a special team for insertion and extraction of other special forces like the Navy Seal's. Other than that it is going to have a standalone thermal (SeaFLIR III in the real world) and the major difference between it and the vanilla speedboat are the 5 simultaneously mounted weapons, the real one has various weapon layouts. Maybe its possible to change the weapons set in arma too. FFV would be a nice feature but i dont know if i could do that, maybe long-term.
For reference, this is a real soc-r:
Never thought of a kayak..... could be cool smal mod (gets on my list). Acceleration is the key of soc-r's so i will try to implement it as best as possible, top speed is going to be 74 km/h wich should be the real value. Cammo-nets not first, but if i can do some sort off layout changer camo-nets would be in.