The Halo Mega Bloks Last Man Standing Zombie Pack (set 971991) is a Target exclusive figure pack which depicts the infection mode, pitting a blue team Security Spartan against a quartet of glow in the dark infected 'zombies.' The set includes a Blue Spartan Security with Shotgun, GItD Spartan Recon with sword, GItD Spartan EVA with sword, GItD Spartan EOD with sword, and Spartan Scout (actually CQB) with sword.
From the package:
A Spartan Security in new cobalt blue armor is the last man standing against four infected Spartans in zombie mode.
It's a fun little set, and the glow in the dark armor figures are a neat bonus.