ArmorerG 35

Found a much quicker way to get this.Ok you only need to be around lvl 4 with each class, use all your attachment points across all 3 classes in both factions,then,& this is the trick,you can de-attach all the upgrades you added on then simply reapply them,then take them off again then reapply again.Everytime you reset your upgrades you get the points back & they count towards the 25 for each class.I got this on lvls 4-5-7 on my three classes,so in theory you should only need to be lvl 4 on all 3 classes to pop this as my sniper still had enough points for 25.May be possible to do at lvl 3 but was past this point when i figured this out.