Parts List: Terran Marine Assault Armor

The main body is a Tau Stealth Suit. The arms from a Tau Stealth Suit as well. The shoulder pauldrons are mounted fat side up.

You can use Space Marine or Space marine Terminator legs if you are going for human troops. The mating of the legs and the Stealth suit torso may be a little fiddly.

it is hard to see but I think I shaved the bump at the waist of the Terminator legs flat so that it could be glued to the Stealth Suit torso.

Tau Crisis Suit Missile Pods had the smallest mounting bump removed for the same reason. So that it could be mounted flush with the back of the Stealth Suit backpack.

I used the claw from the Goshawk, a Mechwarrior clix Mech.

For the Flamethrower armed suits' hands I used the hands from a Crimson Hawk mech from the Mechwarrior Clix game.

For the Commander of each unit I gave them extra jump capacity and mounted the fans from a Hawk Moth Gunship which is also from the Mechwarrior clix game.
Most of the mechwarrior models can be found cheaply from sites like miniature market and the troll an toad. They are great for harvesting parts for conversions.

The flamethrower is from an Imperial Guard Sentinel sprue from the Warhammer 40k game.

These two pics are of two squads with slightly different weapons from the original model conversions. They have had their right forearms cut down and the barrel of a Tau Crisis Suit Plasma Rifle mounted there instead of the Fusion Fun. They also use the claws off of a Mechwarrior clix Agromech on their left hands.

These suits had twin Plasma Rifles glued together and mounted on the top of the backpack in the same fashion as the missile pods. They retained the Fusion gun mounted on the right arm though.

This squad used flamers, from the Tau Crisis Suit, glued at right angles with one flamer having its square fuel pod removed and affixed to the right arm under-slung style. This unit also has a plasma rifle mounted on the right torso under the arm.

Here is a parting shot of the entire Terran Alliance (TA) Marine Orbit to Ground Assault Force (MOGAF)  I have assembled so far. It is still a WIP and I really need to get to painting the rest of this stuff but like most model hobbyinst I get easily distracted by new shinnies...