OpenRA - Red Alert Wiki

The Attack Dog can instantly kill any infantry unit, but it first needs to get close enough without getting shot. It is extremely vulnerable to any attack.

When the dog kills an enemy which is part of a group, it sometimes enters into a "killing spree", quickly jumping from one enemy to the next.

An attack dog is not fooled by the disguise of spies and will chase them on sight.

Engineer Ambushing[]

Attack dogs are often used to ambush engineers, by being placed near oil derricks that engineers seek to capture. If an engineer approaches an oil derrick unprotected, the attack dog will kill it.