I have two tactical hounds.
Bothe were picked up for free, one from a shelter, the other from a respected dog trainer in California, who was going through a nasty divorce.
The Divorce dog, is a mix between Yellow lab and Great Dane. She had the coat of a yellow lab, but the stature of a Great Dane, she weighs in at just under 100 LBS, but looks extremely skinny. She had been well trained, and does everything you tell her, and she even thinks by herself. A very smart dog, and I will miss her when she goes (she's 7 now).
The other dog is my tough guy, he's a Rat Terrier, as best we can tell. He looks like a taller Jack Russell, and has the same attitude as the Jack's do. He really is a good dog, but haas his moments...He is the attacker of the bunch and is credited for two bites. Both of them justified in my mind. One was a friend who let himself into my home, and bled a bit. The other was another friend who did basically the same thing, but reached his hand out to let the dog sniff him...neither one of them were met at the door by either my wife or I...so I say they got what they had coming.
I would love to post pictures, but don't have a server.