I only play PvP for marks or IB gear because I suck at PvP. I just try and have a bit of fun so I don't go insane. This means I use shoulder charge a lot because it's a fun kill when you're no good at firefights. But please, I get shotgunned, melee killed, two shot scout rifled, quick scoped and all sorts by people before I even get close. Plenty of times people just jump out the way. Anyone who is a good player (not me obviously) counters it fairly easily.