an objective based mp mode like seige could be very fun with the combination of close combat and action the game seems to have. i think a mode where one person issues commands to a small team of 5 players, the commandos with special gear vs. 10 - 15 players, trandoshans with basic guns and gear would be a fun attack/defend or objective based mode. if a player dies on the commandos, the player can be revived only after a while, whereas the trandoshans respawn a little faster. kinda make a single player level, but all controlled by people.
also i remember hearing a mode in rainbow six that is more like the standard, unreal type fast paced action deathmatch. i think it would be cool to have two modes of gameplay style for the deathmatchs, arcade and tactical.
all wishful thinking.
do or do not there is no try - yoda