: either you already had the version 343i made, or while someone was modifying
: a regular gametype into their version of race, they replaced their
: gamertag in the file properties (or whatever it is) with "343
: Industries"

It's a gametype someone at 343i released on their personal fileshare.

It's modded. It's by 343i. It's the same freakin' gametype.

Maybe you should look at 343i's forums or talk to them once in awhile?