Hey guys i choose the Iron warriors becouse i dont like this mutant stuff. ..dont like the mindless KHORN WAAAA GRRR stuff I like heavy Armor an Weapons thats why i select them. But i miss a few peaces... i miss range..heavy bolter etc. I realy hope that the Iron warriors are not the same as the other legions here. It would be a pity if i have to run into battle like a Khorn or a Nurgle champ..
I'm not quite sure about what you're saying, but the differences between subfactions will be mostly cosmetic. Though there might be some kind of perks/bonuses for different subfactions, the devs haven't really confirmed how it will work AFAIK.
Dont see why you would be running into battle, when two of the 3 currently presented classes focus on ranged combat (CSM Tac/Havoc).
Forget it. Though from what I remember various subfactions were said to have their own characteristic buffs eg: Iron Warriors - better dmg against vehicles etc, etc. I don't remember however if that's going to be at launch or later. Anyway imo it's a must, for me it's obvious subfactions will differ and have their own specific strenghts and weaknesses.