DayZ field wiki · Gear
UMP
Another compact noise
Short answer
A different SMG name. Same lesson: rooms, not ridgelines.
Also: ump45 · ump 45
How it works
The UMP is a named close gun. Ammo type is not a suggestion.
What to do
Check the mag. Check the room. Leave if the field starts.
Don't
Don't paste a damage wiki dump.