A question about Conquest

[Death]

I need help with something on Conquest, but I can't really explain it. I'm trying to unlock the MK3A1 and one of the things that I have to do is get 10 kills with the BTR-90. The BTR-90 can only be found in the RU Development on Gulf of Oman on Conquest. I tried sooo many times to get on regular old conquest, but I keep getting put into Conquest Assault!! I know that the BTR-90 is only found on Conquest because I did a little research and I've searched everywhere while on a Conquest Assault match. So does anyone really know how to go into regular Conquest? (I tried picking 'Conquest' - 'Gulf of Oman' and it keeps sending me to CQ-A. I tried getting into a server instead that said 'Gulf of Oman' - CQ only to have it say CQ-A )

EDIT: Nevermind, I already earned 10 BTR-90 kills.