I FOUND SOMETHING COOL

Okay so two things, first ive been trying to get the Legendary Anniversary achievement so first i wanted to complete halo 2 which i did on legendary and i havent got the acheivemt. second i was bored so i played around on delta halo and as i spawned i too the entire first wave kf enemies out and then i used a trick i learned from the Nak3d Eli to get out of the map. I then walked then returned to the map and walked the whole thing to the end (begining of regret) The mission didnt end so i was still in delta halo but on regret where i then used another trick from the Nak3d Eli to get out of Regret. i was then on regret while in halo 2 where i walked to where the first gondala ride wouldve happened i found this weird box thingy that has this keypad looking thing with a weird screen that is a blue with a circle in a box with arrows pointing at the circle and I WANT TO KNOW WHAT IS OK.

do u have a picture

Wrong forum. Don’t post this stuff in support man.