Hey Guys, this is my first post and im really sorry about this question, but im really mixed up about what I should get.
Let me give you a bit of background info: Im mostly a back player i.e call players locations cover fire etc etc. My question is, I have about 650 tops to spent on a gun.
I really have used the search function but the 3 pages of results didnt help

Im debating with Impulse Vert with vision eye, B2k4 with pds, and autococker.
Any help would be very very much appreciated. Thanks