[@Dog] Yeah! Both of those could work. A heavy mech with a superheavy pile-bunker style lance, and an afterburner to give it a surprisingly fast charge could be a threat to warships and MAS alike, pair it with a sword and shield(or a fucking warhammer) for close in fighting, and maybe some point defense guns and a missile system for a modicum of ranged threat and that would be a very viable mech. 

As far as the T-120 goes, I like the idea of it being a commonly fielded merc suit- most mercs making a living in the no-man's land typically pilot Fenrir IIs, which is basically the AKM of the mech world, so the T-120 being the equivalent of the RPK is pretty cool. The MRL-20 is kind of strangely named though. Its the Multiple Rocket Launcher 20 but only has 8 missiles? Also it seems kind of underpowered- If all the launcher has is 8 missiles, I'd probably expect it to be able to disable a medium in 1-2. Shield generators are also a rather new invention, so it probably wouldn't be commonly fielded on the standard T-120- though it would make sense to be put on Moore's custom T-120. Also, would also probably need a short explanation to why Moore uses one of these, instead of a UEE built mech, and how he got his hands on one in the first place. Maybe an undercover assignment required him to use nonstandard mechs, and after finishing said assignment he decided... hey, well if its just gonna sit there I might as well take it. 

But yeah, I like both of those!