Actaully - C3 on assaults have it's point too - friendlies will know how many opponents rush you and they will try to help. Also imagine - if everyone have C3 than when you spawn you can check the mechs enemy have, how many of them, how far from the base, and pick up the best layout as well as best path towards the target. Amazing advantage.
2 tons is much, sure, but some mechs have it spare in this case or another, so it'd be more a matter of taking additional ammo or asking teammate to bring APC on battlefield.
Providing intelligence (so increasing team effectives) and gaining free Cbills would refund all the losses.
As of C3 for light-mechs only - this could solve all the problems.

Only... what about BT variants: C3 Atlas, C3 Catapult, C3 Rifleman?
