Can someone with Resident Evil 5 on xbox live send me an invite to a game on professional mode?

I owned RE5 on PS3 and beat it on every mode as well as unlocked (almost) everything there is to unlock, so I didn't want to have to beat the game again on a lower difficulty just to start my professional play through on xbox. I wanted my first play through this time to be on pro mode. Can someone post their gamertag and send me an invite to a professional game so I could unlock it?
Answers:   
i know he can invite you and you can complete the level on professional but i don't think it actually unlocks it for you.

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