Im gonna make a ruling here

E/S SubMachine-Gun Lance- Can switch between solid ammo or can connect to the Ethus reactor to fire energy rounds. It is high-calibur and it's solid ammo rounds pack acceptable stopping power, while it's Ethus rounds take large amounts of energy for powerful rapid-fire rounds. Held in the right-hand. It has an Ethus-bayonet at the tip of the barrel around the size of a small Ethus shortsword. Can pierce thick armor-[b]This is weighs 3 units, this is a very powerful gun though, not sure how I feel about its armour peircing, because that would depend on the armour you are shooting at, but I will keep an eye on the battle anyway. [/b]

Ethus Dagger- Can change the size and intensity of the blade. Removable and exchangeable. At high intensities can cut through thick armor. 
[b]this weighs 1 unit, but I have to say now that 'ethus' is not a form of plasma that can be turned into a blade, its more like electricity an ethus dagger would be a dagger which is powered with some sort of ethus drive engine or motor, think Nero's Sword 'Rev' from DMC 4, nonetheless as a unit 1 weapon it wont be as powerful as you have described it here.[/b]
Head Vulcans- Located on each side of its head are vulcans that fire small tracer rounds for shooting down aircraft.
Missile Pods- Located in the hips, fires small butpowerful HE-Ethus Missiles, can be set to heat-seeking or just fired in a straight line.
Chaff Canisters- Contained on the back of he legs, released and exploded midair to destroy missiles.

 [b]all these seem okay, for 1 unit each so you will either need to drop one or very clearly state that you have a limited amount of missiles and canisters, as 1 unit is the equivlent of 10 grenades. Also, the missle pods wouldn't be very powerful. [/b]