Alright, this here is mah suggestion for a new gameplay mode.
Juggernaut: A 6 player match in which there are four cogs, and two locusts, the two locusts being Berserkers.
Farfetched, but I think it would be interesting. Conventional weapons would do damage to the berserkers instead of just the hammer (with varying degrees of effectiveness, o' course). It would emphasis teamwork on both sides, if one cog goes out without his team, he's screwed, if the berserkers get split up they would be taken down easier, etc.