Due to the fact that you all love my mechs, I decided to dedicate a post specifically towards them.
I believe I will make another strand of mechs before too long. done
The Military
The standard military only sports two kinds of Mechs, relying more on fast and hard hitting ships to do their job.

The All-Atmosphere Assault Mech; a basic machine armed with a heavy machine gun.

The Heavy Assault Mech; sporting top of the line machine gun, twin box rockets, and heavy shield plating, this mech can deliver painful retribution to its enemies.
The Navy (Marines)
The Navy utilizes more elite and tactical mechs to do their job. However, due to lack of heavy artillery, they never stray from a mothership/station/carrier etc.

The Tactical Assault Mech; A close range mech sporting a powerful shotgun.

The Relentless Assault Mech; A powerful and hard hitting mech with a mounted shoulder-chaingun and minigun.

The Long-Range Support Mech; With a deadly accurate sniper rifle, this mech supports ships and other mechs. It is armed with two shoulder-mounted machine guns to help defend against the rare enemy that can close in.
The Demolitioneers
The Demolitioneer branch of the military sport only explosive weapons and are usually used in number to tackle larger ships.

The Standard Bombard Mech; A simplistic mech outfitted with an RPG.

The Heavy Bombard Mech; Armed with two box rockets and an RPG, this mech packs a punch.

The Grenadier Mech; This terror shoots grenades at high velocity towards any enemy in sight.
And last but definately not least,
The Red Warrior.

Doogie's legendary customized mech has been known to reduce fleets to nothing more than scrap metal.
EDIT*you know, I bet using grunge on the marines would be nice...
...strike that...its silly looking.