What's happening?

What, the game isn't already enough of a joke for you? 

the joke must be their servers not loading

I was gonna say, "Wildcard?" But the truth is you could name any mode you care to. It applies.

i guess the pathfinder grenades were the "joke"

wildcard only from what I see. you're shooting from the left instead of the right and the map is flipped.

oh, and the zip lines were extra zippy (fast) for april fool's day