That would be a copyright infringement anyways.
No. You are not a lawyer, you do not know anything about these things.
We already have the Flak Gun, but why not have more UT weapons? Like the Shock Rifle? Or the Bio-Rifle? It would be nice for some Unreal-based gamemodes.
I agree, it'd be very cool. However UT uses a lot of special effects that the Blockland engine doesn't have - for example the bio-rifle can stick to people and the shock rifle can shoot it's own projectiles. All things we can't do in Blockland at the moment so it makes it very hard.