"* Implement Market Garden "backstabs"."
I made it so the weapon is mini-crit and basically raised the crit damage to compensate.
"- In a normal round, a good soldier can get 1k damage without minicrits/crits."
I have no idea how you are going to achieve this, what weapons DON'T crit?
"- Average HP of the 9 classes is 166, so on average this puts soldier at doing a little more work for his "heads" than normal "technically"."
You have to consider that some of his buffs are VERY powerful i.e. Battalions Backup and Buff Banner a group of Heavies. You could relax the rage buildup on Concheror probably.
"* Bushwacka doesn't disable crits."
I recommend you think this one over, now theres no reason not to use Bushwacka.