Create a new enemy

If you could add a new enemy for the next instalment for halo what would it be?

heres mine, named behemoth a forerunner hunter like entity standing at 10ft with an enforcer like shield on the left arm that can be destroyed exposing weak point on the arm, a energy beam cannon (a high powered sentinel beam) that charges for 3 sec and fires up to 3 sec alternately can switch to a semi automatic sentinel beam, is also able to fire blinding flares to disorientation foes