I not sure where that is from, but it looks like Garry’s mod since you get those wierd guns or something else. But what about that kind of bunnyhopping? Not sure what he did honestly to get that, but i remember i did post up a few jumps similar to it. IE: de_compound, basically jump from hostage room, across to CT spawn or turn and go on top of the huge buildings in 1 jump.
Also know how to jump from the boat across the warehouse to the exhaust vent bomb site. (I think i posted how to do that too, just did it in the wrong direction and went into the sea).
Unfortunatly both of those two really big jumps i learned from watching “dreaming of jumps” and “———– 2”. Can’t say i invented those :<