Immortal Infantry - How raise HIT chance ?

[MajorDisaster]

OO I like this discussion :-) I've been trying the last few battles of a German long campaign with inf now on 70% toughness on both sides, cos I got so bored with hammering 200 man Russian infantry charges across open ground, with tanks, MG's and heavy mortars and they're losing 3 men a turn. I ran out of HE trying to kill them off and theyre still taking pot shots at my guys who are in cover, while they're supposedly pinned or retreating, and have several tonnes of lead falling on them. I guess my guys were greener to start with and that might explain a bit of it, but now most of them arent and even at 70%, infantry are still pretty tough cookies, especially from close range, high calibre HE. Stationnary Stug42 fires 3 rounds with 105mm at Russian infantry section moving at full speed at 50mtrs which pins them and that's it. Surely someone would have at least got wounded? At least now they dont charge full tilt across a field, taking no casualties and still managing to surpress tanks at 300 metre + ranges.
I'm sure it varies a helluva lot depending on nation, time of combat, experience etc... Absolutely agree that no-one(?) wants a "Tank V Inf= Inf Wiped Out" game, so 30% would be going way too far - they'd all be dying out having a few rude words shouted at them. But as said, even at 70% they are still well hard :-) Right, that's my tupenny worth...