Here is something I think would be great for halo 5; unique actions.
So unique actions are in-game actions your spartan can only perform if you have that particular one selected in your loadout. They could be a large variety of things such as…
Repair- fix damaged vehicals/prehaps other things
Construct- build fortifications and obstacles
Mark- lets you mark enemies for your team to see momentarily.
Adjustable zoom- pretty self explanatory.
Set trap- set one trap on the map that explodes when any enemy comes near.
Tactical skill set- unlocks certain actions such as prone and wall hug.
Martial arts training- lets you deliver more lethal melee strikes.
Well there’s a few hypothetical examples. Yes, unique actions, what do you think? I think it would be great.