Machai Rex

I can't be the only person to have noticed this, but we're stuck with the same few maps on rotation time after time in matchmaking. I paid good money to get the DLC and there are some good maps amongst these. Even outside of the DLC, there's a good variety of maps that we just don't see in matchmaking. Is there any way in which this can be remadied? It'd be nice to have the option to play more than the 4 or so maps over and over again. Thanks.