I never used the jackal but i don′t have to do it, to say that it needs balance as soon as possible.On the other hand, auto armor should be a perk for the new recruits and should be locked after you pass that stage.Basically, you don′t have any penalty in movement speed but if you have it equiped it will protect you instantly, in the second you got shot.This perk needs to be balanced or locked and the jackal is a spray gun that kills even at medium range in a glimpse.
Just my 2 cents, you don′t have to agree with me, but it′s getting annoying as hell.