Subway

some take PSPs and hold them with claymores and satchel charges. If your team can take all 3 bases you can go through the train tracks to the default spawn location to build up your kills faster, but watch out. A nade can end it all.
A train station style map built underground gives way to a small scale all out battle for the subway. 3 PSPs with some paths to move around may help provide different tactical options. Works well if