use ur rifle for the entire game until you have 100 res, dont spend any money on anything at all that would benefit the team earlier (welder, mines, shotgun) and then expect to train into all 3…
I have it bound to kp_end -- I use arrow keys for strafing and my whole movement config is basically on the bottom right of the keyboard. I never had a single issue before this build.. everything worked perfectly since I started playing in build 209…