Halo reach introduced the amazing assassinations. Now armor in reach also included knife positions on the torso. I think that Halo 4 should have the knives come out of there holders and actually look like the knife doesn't appear out of the air. Assassinations could depend on your knives position and this could make people want to buy them. Now what if we made this idea even better. We all know the 4 basic assassinations performed in reach. What if with the purchase of these chest pieces you also unlocked assassination animations which you could customize in character customazation.
Then if halo 4 features a katana. Make it so it is unlocked after finding skulls and beating campaign on legendary. Then...katana assassinations.
What do you think?