Alpedar

If you activate console, you can see that your attacks damages that door (even if using hand). And it depends on weapon how much damage you do = how long it takes to destroy that door. I managed to destroy it using knife with my sniper (strength 5). So grenadier should be faster. And boris survives even if he dies in this mision. So no problem.

I've just finished UN mision. And it was peace of cake. I played on this dificulty: based on hard dif, but enemy level +3, full heal, full save, automatic medevac (but i havent need it yet). (I'm not hardcore to play with all enemy sliders right) I got bank mision before and leveled my main character to lvl11 before UN. I hired Toki, best medic, grenadier and ingeneer. First part of mision I managed with exactly one shot fired. Toki killedeveryone with his katana (he sometimes walked around stealth enemy, but they didnt noticed him (and if they did - load)), only last guard was unreachable becose of mines. My prim. char killed him. Bomb part: My soldier (Gator, I hired him as my first merc, so he wa on lvl11 too) sprayed doors and through doors. My prim character steped near doors (on left side) and noticed and killed one enemy). Then i rushed in with prim. char, toki and engineer and killed everyone except farthest bomb. So it went realtime and i had as much time as i wanted to remove this bomb.