Originally Posted by Blafwaffel
BTW, you can earn " Beast with two faces" also in the training mission. You will not die during the back to back and you dont have to reload!
All the other achievements can be done during MP, except ofcourse Fission Mailed and Beast with tow faces.
dude you can only get the weapons kills online as well as in campagin, co-op snipe, co-op riot shield, healing your parter, getting 1 million, getting the mask, buying those certain weapons and the achievements for beating each mission and beating all missions on professional, beast with two faces and fission mailed are the achievements you can only get in campaign, so don't go saying all achievements can be done online. except two