The Lost Titan 2

(This is a remake of the original) and ofc If you didnt know this, it was from a video by Dominzki, the title was The Lost Titan it was a TF2 animation where the blue robot mercenaries built and created a giant robot called the titan, it had serious firepower and not even the survivors weapons prove inaffective , and soon the survivors were pinned down their last stand, and soon a nuclear explosion occured killing both the robot mercenaries and survivors, the titan was only thing that didnt got destroyed and it rebooted its systems and is soon left to roam the wastelands of earth characters: soldier scout heavy spy engineer medic pyro demoman (you can be anyone or your oc, and please dont look at the voice and if you do it's heavy's voice that I used)