HaloCouncil released this video earlier demoing two Armour Abilities hidden within the code of the Crimson Map Pack. Originally found by Lord Zedd the two abilities are Teleport and Hacker, the former is similar to the teleport we see Promethean Knights use in campaign, whilst the latter allows you to disable an opponent's Armour Ability.
Teleport as an Armour Ability was mentioned by David Ellis in a 343 Sparkast several months before launch, he commented that they had removed it as it was too overpowered. From this video it looks as though it is similar in function to the Thruster Pack, although it obviously makes you temporarily invulnerable. Hacker looks like a much more interesting proposition, we first heard about this around the time of barn-gate, when some screens leaked from the internal Microsoft Beta. It's a shame that it didn't make it in as it looks like a lot of fun to use, but I imagine 343 were concerned that overuse might damage the rest of the sandbox.
Anyway, check out HaloCouncil's video:
- Cowboy Out.