How about a "marines" infantry unit that costs a bit more in production and upkeep. But Embarks and disembarks faster than normal, and perhaps travels over sea a bit faster.
Playing in a team game. Never played with teammates. I have the ability to sweep an area for enemy units that I want my teammate to take. So how does that 1 work? Can he just drop units on my empty territories and have them, or does he need to be the one to actually take the provinces (as in leave any defenders on perilously low health and move on)