I like this idea, make Attack dogs buyable AI's that cost around 250-300 credits, and they follow the buyer around until the buyer dies, or the dog is killed, unless the dog "Picks up the scent" of a spy within a certain radius of the buyer and goes to the spy, allowing the buyer to attack/kill the spy. Kinda like DDog in MGSV, also "sniff out mines" would be a cool addition to attack dogs.