Here are my suggestions, I would like to see, that in my opinion will make the game better.
1. Make charging usefull, and viable option for players. Making one standard attack, at the end of the charge is not good enough. That attack, will be easily deflected, dodged or whatever. Instead its better to shoot, and wait for the enemy to charge, or just walk to someone and LA him as a half action.
My proposition: Give everyone flat bonus +3 to damage, for charging. Essentialy Brutal charge for everyone. Those already with brutal charge, should get bonus on top of it of course. Some penalty to parry may also be on order, like -10/20
2. Primitive armour and primitive quality - I suggested that change in OW beta. Its the amalgam of OW and DH rules. Primitive armour gives full protection against weapons with primitive quality, and half protection, against weapons without primitive quality. Primitive quality only works against non-primitive armour. So hammer against flak armour deals only max 7dmg on die roll, but works just fine against furs, and chainmail.
3. Opposite to D&D, two handed weapons are worse than two weapon wielder, because of reactions, limited lightning attacks etc.
My proposition: Give bonus for wielding weapon in two hands. Its already been made with some weapon (power maul or chain axe), but I suggest that all weapons should deal eg. 2 more damage when wielded in both hands or better! Half Strenght bonus (rounding up) to total 1,5 SB dmg. Yeah, thats brilliant.
4. Go back to called shots as they were in DH 1.0. Dont make action of it, just flat -20 to hit. Also give bonuses for shooting in the locations. Our houserule is that hitting the body deals +1 dmg, and hitting the head deals +2dmg. That way shooting in the head actually makes sense not only if someone is not wearing helmet. Of course, certain creatures with amorphous, undying, machine, strange physiology or stuff of nightmares shoudn't recieve extra dmg.
Thats about it. Hope you like it.