There seems to be a common thread in most of these posts about a wish for these Camelot battles to be fair.... Camelot is a place to wage war against the opposing side and war simply isn't about being fair, it is about winning. It is about using any and all abilities to win.
As long as both Omni Tek and Clan engineers have the ability to warp people into an already "full" playfield what is the problem? Each side can warp in as many people as they wish.
If Omni Tek doesn't have the # of needed people to match the Clan forces then Omni Tek should increase it's forces and simply doesn't deserve to win.
Seems rather simple...