I managed to answer you eventually haha, sorry about that I have been really hard at work porting the quake physics to UE4 and making a game from it. In fact it's pretty much similar to what you're making. I am currently working pretty hard on an in game level editor as I have already completed the port, including all world interaction too like down ramps, wall strafing, etc. I assume you've played Defrag? Did you used to make maps for the game?
Are you going to put it under the GPL 2.0? That's a trick question because you have to or else you're breaking the fucking law. You are a goddamn imbecile.