New exploit/cheat?

I just finished a BTB match on Recurve. There was a player on the opposing team who got on top of the map, to a place that shouldn’t be accessible. Once I saw where he got to, I went to report him. His gamertag in game was different than on his gamercard. In the carnage report it comes up as one name, but a completely different name in the gamercard/profile. Oh, that profile has zero Xbox achievement points, rather suspicious. Also, the guy went 39-6 and is a level 4.
Has anybody else seen this? Is this something new we have to watch out for?

With all the new spartan abilities its common to see ppl take advantage and explore new vantage points. Maybe he was using a new account ? Since ppl can make multiple acc using the same xbox membership.
I have a spare which i sometimes use for fun

Ok, The exploit on recurve has been there for a while, 343 hasn’t fixed it yet or don’t want to (they have a penchant for ignoring the good playlists). But the other one I have seen once, almost in a similar situation, and have real advice other than try and report both gamertags. So far this is the second instance of this trickery and I am unsure if it someone playing through a parent account (as in the one you saw in game was the under 18 account, and the xbox profile was that of the parent account) or something more sinister.

could be he just changed his GT. when i changed mine last week it was updated on my account about a day before it was updated in-game. even though it was displayed updated on my Xbox home screen as well