I've been a fan of McFarlane Toys' Halo series for a while, and I've been increasingly enthusiastic as the scale shrank down from its original, slightly-above-1:6 scale to the new, slightly-above 1:18 scale (seriously, how hard is it to make your figures the same scale as everything else on the market?)
Anyway, A long time ago, well before I began collecting the Halo figures, I had a fan-comic about two SPARTAN soldiers in a dead-end, backwater posting in the armpit of the galaxy. The comic itself eventually fizzled out, but those two SPARTANs have appeared in a couple of other comics I've done throughout the years.
Over time, they've changed with the game series, their armor sets becoming farther away from the stock Mjolnir armor to now, with Halo Reach, fully customized armor sets to make them as different as night and day.
Anyway, the main character is named Rusty; he's a red-armored screwup who was sent to the worst possible posting imaginable to keep him away from the brass.
Over the years, Rusty has become slightly more competent (I'm not going to lie, when I first wrote the character, he was a lot like Caboose from Red vs. Blue) and he's even had a couple of major character developments.
Anyway, you're not interested in all of that. First, let me show Rusty to you guys (as rendered in Google Sketchup.)
And here's the figure I've been slowly customizing over time, cannibalizing parts from SPARTAN figures, an ODST figure, and even a Clone Trooper (a visor that's slowly being formed to fit his helmet).
At this point, I just need to apply the paint to him (Wal-Mart sells armor packs in Red, but unfortunately not the specific combination of armor parts Rusty wears.)