Gears of War - I cant quit you Dom.

[ÉsPí]

Hello everyone!
Im asking for a favour of everyone who has Gears of War and xbox live. Because of my friends disk not being able to read the game on a certain act, i couldnt get my Dom achievment! Ive done every other level (All acts on Insane) but because i did it solo, no achievment. I was wondering if someone could lead me through from -
Act 3 - Belly of the beast - Evolution
Till the beginning of Act 4. It would be much apreciated since its my last single player achievment. Unfortunately i do not have anything to pay the person who helps me with apart from rep on here. Thanks if someone wants to help.
(P.s - If im offline, my gamertag is - ChaosancheZ. Thanks!)

;;ÉsPí

[Johno]

I will be able too, But not till around 7 tonight.

So if you want me to join you, Send me a F.r

.:; Johno