Spoiler
Show
If any grots are attacking Jurgis, he screams at them, swinging his lasgun stock at one with his left hand, while he fumbles for his knife with his right.
Lasgun (improvised club): 17+2-4(improvised weapon)-4(off hand, working on the difference between main and off hand to get off-hand modifier when not attacking with main hand) = 11
Damage: (assuming d6): 1+1 = 2
If you rule that I can't go for the knife when swinging the lasgun, then I just swing the lasgun two-handed. Yes, I know I could drop the gun as a free action, draw the knife as a move action, and attack as a standard action - but Jurgis is a kid in his first combat. He's going to make sub-optimal moves.
If there are still grots incoming and he isn't in melee, Jurgis fires another salvo.
to hit 1: 12+5(+1?) =17 or 18 if in 30'
to hit 2: 6+3(+1?) = 9 or 10 if in 30'
to hit 3: 17+1(+1?) = 18 or 19 if in 30'
dam 1: 4 or 5 if in 30'
dam 2: 8 or 9 if in 30'
dam 3: 2 or 3 if in 30'
If the other guys clear out the grots before my turn comes around, I'll just have to respond in my post.