OK simple scenario. Our starting character a Felan assassin (level 2) with Deadly Strike and a starting AGI of 8 is waiting to see in any patrols approach the building where the rest of the party is "recovering" the McGuffin. Being fairly intelligent when he sees the 8 man patrol crossing the open quad he declines to fire until they are 10 hexes from cover. Declares Overwatch for the next round. He can now fire 8 shots at the unsuspecting patrol 1 to each. On their initiative the patrol with their first step is either wiped out or is severely damaged. Base damage for sniper rifle is 4 dice add 4 dice because they were unaware of him, add in 2 dice from his attack dice. So 8 attacks with 4 dice to hit for 10D6 damage.
Not bad for 1 aging frail Felan
Maybe a penalty to hit after the first target? I'm not sure but something is needed for balance.

Maybe a penalty to hit after the first target? I'm not sure but something is needed for balance.