Barioth, looking at your weapons it doesn't look like they add up to a 5 unit Frame, but a 10 unit.
E/S Machine-Gun Lance- 3 units
Ethus Blade- 2 units
Head Vulcans- 2 units
Missile Pods- ~1-2 unit(s)
Chest Bombs- 1 unit
Chaff Canisters- 1 unit

I am not the GM but I feel like what I pointed out is something he would agree with.