(select merc:

Blu: Medic Engineer Soldier Spy

Red: Demoman Heavy Pyro Sniper Scout)

Lore:All the other mercs died because of a goo that turns into any of the merc and can use their skills... Only a few mercs alive, they all need to team up

Scout:Guys, over here! Heavy:Heavy will need Sasha to shoot the goos Spy:I'm so proud of you, son Scout:Thanks dad Sniper:Ah! What the bloody-hell is that over there! Engineer:My Sentry is ready to be build