* GoodBadBugs:
** Before walljumping, people would break the maps by Spas jumping — shooting someone standing on your head with the shotgun propelled them in the air.
** Players drown by taking damage for being underwater too long, but two people can heal each other faster than they take damage from drowning. This means that two people can heal each other and remain underwater indefinitely.
* ScrappyWeapon: As of 4.2.018, the MAC-11 is technically inferior to the [=MP5=] and [=UMP45=].