My working log of sven map bugs while playing:
sc_fortress - 'Gunner' class choice doesn't receive primary weapon.
defendthefort - Final enemy in later attack waves gets stuck on the beach, mobs get stuck all the time on this map they are invincible like a Wall would cover them.
hellmouth - Skelly monster in first waves gets stuck behind portal wall.
vger2alpha - Elevator likes to get stuck on the way up.
sc_fortress - 'Gunner' class choice doesn't receive primary weapon.
defendthefort - Final enemy in later attack waves gets stuck on the beach, mobs get stuck all the time on this map they are invincible like a Wall would cover them.
hellmouth - Skelly monster in first waves gets stuck behind portal wall.
vger2alpha - Elevator likes to get stuck on the way up.