I like what you've done with this build. Its a updated take on the classic Stalker load out, with good damage at all ranges. The only possible downsides that I can see are the reliance on ammunition based weapons, the relatively low ammo counts for those weapons and the placement of the ammo within the chassis. Here is a possible solution: I tried to keep the load out as similar as possible to the original whilst rearranging the various bits of ammo, equipment and DHS throughout the chassis, with a view to improving survivability. Making sure that any major components where ammo is stored have no unused critical slots reduces the chance of a critical hit striking the ammo stored there. Also, particularly with the Stalker, storing ammo in the mech's arms and legs further reduces the likelihood of it being struck by a critical hit. In order to improve the builds close-range fire-power and overall combat persistence, I installed a third SSRM2 pack along with two more tons of ammo for a total of 50 salvoes, as well as a further two tons of LRM ammo for a total of 54 salvoes. I had to reduce the engine rating a little, but only down to an Standard 295 and although there is a ton less armour, all three torso sections remain fully protected.