|Description||Win a Demolition match during Hallowe'en by killing 500 zombies... again|
|Game||Hold the Line|
|Orb Points||300||Orb Coins||3|
Keep in mind that this must be done on 1p demolition mode. If you do 2p demolition, you won't get this achievement.
Zombies can be killed by running them over or by explosions and machine guns. Machine gunning is the most efficient way of killing them. The Snowcat is a good vehicle to use, since it can rotate on the spot easily. Alternatively doing laps around the edge with any car while using the machine gun will get this achievement quite easily.
This achievement can only be earned during the Halloween holiday.