PUBG · High Tier
Manageable recoil and strong close-to-medium damage make it too easy to use well, so damage comes down slightly.
For every weapon between A and S tier, apply one nerf to one aspect of it so it's not completely dominant on the battlefield.
Each entry lists the move or ability affected, the adjustment itself, and — where the analysis states one — the problem it is meant to solve and the reasoning behind it.
UMP45 is one of PUBG's entries — the full tier-by-tier breakdown covers the whole roster.