I also like it. It's inspired a "raid" variant that I think I'd use- swap out the Support PPC for twin LMGs, use the remaining 100kg to install vibro battle claws. Slight sacrifice in range in exchange for ammo endurance, anti-infantry capability, and a *nasty* swarm capability. Maybe swap out the TAG for mission gear, whether it'd be target beacons, shaped charges, or other gear.
I think that might be more useful for behind-the-lines raiding, whether based on a strategic-level game or used in AToW, although the existing design is almost certainly better suited to combined-arms field warfare, especially with the TAG (and considering the rarity of convention infantry on the battlefield).