UNSC and BNF base

"the UNSC spartans and BNF base" I don't remember what the BNF was and I don't feel like digging through my PMs/inventory to figure out, but they must've been some allied clan with the UNSC Spartans (or UNSCDF, I think I interchanged the two names but I assumed everyone was a Spartan like in Halo). We must've been messing around in Build mode and making stuff and throwing Toolbox free models in. Honestly, there's some neat models in here like the turrets and driveable Ghost and Banshee that used to work at some point in time... I'll repair them soon. Also, there this four-legged monolith here that was probably used in an ancient boss-fight game or at least based off of it. I don't remember who originally made it but I swear I played it at some point. Lastly, there's a yellow and red ship here named "Arbiter"; it looks exactly like him, don't you think?