how many guns can you have in the deck?
also if someone uses the shotgun against multipal targets in one area, i use resilants, does it stop after one zombie is killed?
No gun limit.
As for your second question...found this:
You should roll to hit every Zombie in the space first, then roll for ammo check and/or discard due to 'Resiliant'.
- Jason
Jason C. Hill
Flying Frog Productions
So no, it doesn't stop. So, it is best to wait to play Resiliant if the hero doesn't run out of ammo.
Reference.
I'd say no only because you're not shooting twice. It's basically one blast, but the roll for each zombie is to simulate the scatter effect. Sure you could use resilient, but I think Hero should still see if the blast effect them all before he discards.
Makes sense to me.
You'd roll for all the zombies then play resilant