There is a bug with the Carnage BR. The 2D model in the store looks like a Reaper DMR with some slight color changes, however in preview and in-game it looks exactly like the GR-22 Assault Rifle. Is this weapon supposed to be a carbon copy of an already existing weapon? Off-topic for those interested: it has a very high fire rate like the GR-22 except it has a lot more vertical pull during sustained fire and does not veer off to the right after the third or fourth shot. It can also equip a compensator as well as an advanced grip, although it cannot use soft point ammunition.