4/5/2/1 would be TT values for average force composition, wouldn't it? Nice as that would be, it's not likely to fly in a game where the heavy and assault queues each waver between 30-50% with about 15-30% mediums and 5-15% lights.
A huge part of the problem is that every single MW title to date has provided a linear progression from light to assault in its SP modes, leading players to treat assaults as endgame content... and not without reason, because balance between classes frankly sucked despite the quality evident in the rest of each game. MWO balance, much as everyone rags on it- still with good reason- is way better. If this were MW3 or MW4, you'd see about 1 light or medium for every five heavies and assaults. Unfortunately, allowing equal numbers of each weight class with a soft cap for each results in the game still strongly favoring heavier classes. Old habits die hard.
My thought on the subject would be to implement a soft 3/4/3/2 ratio to start with, concurrent with additional
gradual balancing measures. Things like a global +1sec cooldown nerf on every single weapon in the game save flamers and MGs, and a global heat gain increase
on a per-weapon basis rather than via ghost heat (such that it would only become burdensome with very large alphas, but would equally affect all large alphas rather than just particular weapon combinations if boated in quantities over Arbitrary Number X). Both would have the effect of increasing TTK while subtly buffing lights and mediums, whose mobility means that they fire their weapons less often anyway and thus would be relatively unaffected by small changes in heat gain or weapon cooldowns.
There have got to be incentives for lights and mediums to crank the force ratios all the way over to their TT values, though. Players will still gravitate towards heavies and assaults until they have a way to sustain the same profits with the lighter classes. That means role warfare, restricting certain consumables to specific classes, and a lot of other stuff that's not likely to happen. Sadly.
Edited by PS WrathOfDeadguy, 27 March 2015 - 10:50 PM.