Well, all the squadies are on "SAFE" mode, being its a patrol and that looks really cool with Sanctuary's Patrol Anim. I had the sniper set to max skill, and now i've set 1 to the lowest skill level, just to try. 1 still notices the sniper, brings up his gun, turns and turns into a bloody mess on the snow. This is working right now, except for 1's radio message about the sniper at 10 o'clock. thanks for all the suggestions, i'll keep trying them until i get the effect that i want.
for the player to not run ahead on the second try, i'll put a savegame right after 1 goes down. There's no way the player can die before that point anyway.