+1 for the suggestion, but:
1. Snipers should be totally removed, as mentioned above already
2. Give 2k health to all the boats
3. Add bridges (as Finisher said) to operate to other islands with the help of other vehicles
4. If map voting is added again, then it will be perfectly suited (maybe another map levelling NSA)
5. Armor and health pickups and grenades pickup point should be added at such a point giving not a heavy advantage to any side.
6. Only 2 teams: Attackers and Defenders
Guys, some normal cars(neither too much slow nor too much fast) should also be added maybe in small numbers because with those slow wheelers it'd take so much time to end the map/reach the destination.