Be creative here there are no wrong ideas.
I would like the Spartan laser to be a weapon personally, just called something different "Charge Rifle" was a name I had in mind
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Primary: Submachine gun Pistol ( Dual wield ) Special: Grenade launcher ( Debilitating effects like stun, damage reduction, smoke screen ) Lazer Beam Gun ( continuous lazer fire ) Heavy: Rail Gun Heavy Sniper ( One you would need to station on the ground to use properly, can use guardian companion to stabilize ). Most maps cannot accommodate this gun, but Melee weapons for each class. Knifes for hunters, gauntlets for titans and something clever for warlocks. The attack will retain its primary function, but will also add additional effects. Weapons for your sparrow. Am i the only one who can see a boss battle with sparrow gun chases. New multiplayer mode for death races. Same goes for ships. "We discovered a new anomaly approaching us rapidly. Scrambling guardians to intercept". Bad guy, space battle, hull breach, guardians in. Big space, getting attacked from all fronts, no sparrow link. Dinklebot found an interface and asks you to hold position in order to restore sparrow link...trololol. Big boss appears, guardians shoot it up, boss starts running to restore health, guardians chase with sparrows while keeping fire to prevent health regen, enemies chasing and shooting, obstacles with random boss escape routes to increase chance of failure. Bleh