MadDog

 is a supporting character and leader of the Mercenaries in the Military Warehouses appearing in S.T.A.L.K.E.R.: Lost Alpha.

"Elite mercenary, known as leader of military base, well armed and highly dangerous. No other details available."

- PDA contact biography

Background
He is known throughout the Zone to be a very dangerous person and as being ranked as the best stalker in the Zone. He is the leader of the Mercenaries at their base at the Military Warehouses.

Appearances

 * Makes one brief appearance in Cordon during the Find the second contact mission cutscene, but plays no overt part in that skirmish.
 * He is the objective target of the second segment of the Attack the base and get the artifact mission.

Lost Alpha
On the rank of the stalkers that can be seen in-game he is ranked as the #1.

Trivia

 * He appears to be a Mercenary from Build 1844 of S.T.A.L.K.E.R.: Shadow of Chernobyl.
 * In common with Dushman, his body is lootable for an almost fully fitted SGI 5k and a Mercenary suit (suit is not lootable in v.1.4007) in addition to the Maddog Crystal.