In the latest multiplayer technical preview livestream, 343 Industries confirmed assassinations would not be in the game - at least at launch. Senior mission designer Tom French explained how meleeing an opponent from behind would no longer result in this action.
"[Assassinations] are not in for launch. We actually really love assassinations... but what happens at a lot of levels is people just turn them off because there's a gameplay disadvantage to it."
Fortunately, not all hope is lost. The plan is to "step back" and figure out how to implement assassinations into the gameplay loop in a meaningful way and then introduce them at a later date.
How do you feel about this decision to not include assassinations on release? Tell us down below.