I have tried to add a 2nd attachment to my primary weapon,but can't. I changed the perk to warlord and I'm able to purchase a 2nd attachment; it shows I have it but when I play online the attachment is not there. What I'm I doing wrong? I play mostly barebones,classic online.I can't add a grenade launcher or red dot sight to any assault rifle. Can someone tell me what I'm doing wrong? Maybe there is way to save your selection that I'm not aware of.