what are the weapons

[vitorsprime]

what are the weapons that give more damage on the boss

[xGlover]

Bosses get hurt just like the other zombies (just does not work head shot to kill instantly).
We recommend that you use weapons that have greater skill, and also larger caliber weapons like M4 or AK47. Or use weapons that work with proximity as SPAZ-12 or Shotgun.

Good luck on your adventure.