My fist thought as soon as I saw the hardpoints was this. I think this will be the most used config. If one decides to go XL :
If I can bring myself to actually give PGI more money, this is what I'm looking forward to until I can get the AA variant.
In the Meantime you can drive this here for the same fun or even better. http://mwo.smurfy-net.de/mechlab#i=59&l=54b9c2b600c28e266208c5f78f729f2935494edf