The hard to miss glitches have been fixed, such as the Care Package and Javelin glitches, but the game is so poorly made and easily exploitable it's quite depressing for people that want to play it properly.
It seems to cater towards the morons and bitches in the game, M203 not annoying enough? OK let's add the Thumper, RPG and AT4, plus the Scavenger perk, oh and Akimbo to piss even more people off.
Seriously, I love playing it but most of this shit occurs on an extremely regular basis, if it wasn't for my mates playing it too, I don't think I'd still have the game.