Grenade thrower

Can anyone tell me how to equip the the grenade thrower on weapon ( which key )?

U key is what it usually is to switch between the rifle grenades and normal shooting

yeah,

just like what @Rickyd123 said.

and than you load the grenade with R.

( which you have 3 of those before running out and be forced to unload the attachment by pressing U again. )

just to add to the above answers. if you change soldiers AI player will unequip it.

whatever key you map it to. i fiddled around with the key binds for a while and i found a pretty good setup for everything Optimal Keybinds