Kill Stealing

Kill Stealing (shortened to KS, Kill Steals, and Cheap Kills) is a somewhat common, though rarely planned, strategy used in FPS games such as Combat Arms.

How It's Done
Walking into small skirmishes with a few friends versus enemies (or enemies VS enemies in OMA matches) is not an uncommon thing to do, and it is sometimes a coincidence.

Helping the battle out, like Spraying the location of your ammo or using an Explosive, isn't uncommon for players to do either. "Helping" the battle may lead you to actually have the (or one of the) kills that your friend/enemy was supposed to have if the you weren't there. To make it even worse for the victim of the KS, in OMA matches that is, the you can attack the exposed player (either he/she has no more ammo in their Magazine or they're badly damaged) and get another kill.

This is most disliked by players who needed kills to get a lead on OMA games.