[quote name='skubish']If you are going for Thrash Cole, I recommend playing TDM. It's the fastest matches.
For getting kills with the retro lancer, I play KOTH. It's easy to just bayonet charge into the crowd that is hanging around the ring.[/QUOTE]
Yea, TDM are very quick most of the time. CTL games can be fast too since most groups of randoms play it like it is TDM. KOTH can be very long, but they are great for farming kills once you unlock the gold retro.
For kills with the retro I think the bayonet charge is hit or miss and leaves you too vulnerable. The retro is like a rifle/shotgun and will down quickly. If you sneak up on someone, you will down them with no problem and still keep enough distance between you and your foe without having to charge. If someone charges you with retro/gnasher/sawed off, use the sights with very quick bursts and you'll probably get a down before they get close, but if they do get on top of you just blind fire and circle strafe them. Turn your controller sensitivity up if you are getting beaten 1v1 against a guy with the gnasher. Against sawed off just make sure they miss with their first shot and you should get an easy kill due to their long reload time. To keep your kill just keep blind firing and circle strafing as they are down. It only took me a few matches to get the kills in KOTH, but I pretty much used the retro exclusively from the get-go.
Also, once May 8th hits and the friend beta codes go out there will be a fresh crop of beginners in the mix if you are struggling for kills, but if you play 90 games with the retro just to unlock it, you should be pretty handy with it when the kills start to count.