@saevikas, some things to think about Reed's upcoming turn. I'm assuming Sheepdog will shoot at the guy with the radio. Even if he takes him out, the artillery will continue to fire even if the enemy isn't aiming. There is a possibility that the artillery could drift towards Reed and seriously hurt/kill him, Jakub, and destroy the Humvee.
Reed also has the linguist ability for Russian. With a successful roll on the radio, he could sound like a native Russian. I'm not trying to sway what you do on your turn. Just giving you info to make an informed decision.