So as opposed to burst dealing no extra crit damage and only targeting chest, how about allowing bursts to deal crits that don't deal extra damage, but instead inflict the cripple effects as well as the temp effects (winded etc), and allowing a level of aiming even with heavier bursts.
I was thinking something along these lines;
SMG burst; can target head, chest, arms, groin and legs
Assault Rifle burst; can target head, chest or legs
Heavy bursters; Can only target chest or legs (high or low)
When fired in hex shooting mode, I guess it would have to auto target chest though.
Thoughts?