Steredenn: Binary Stars

As with the other weapon related achievements, you must simply pick up and use all heavy weapons once (red). There is a bit of luck as weapon drops from cargo ships are random, but you will encounter them all over time.

You can check which weapons you've picked up under the arena menu.

Heavy weapons consist of:
Homing Missiles
Rockets
Torpedos
Stasisgun
Flamethrower
Mines
Charger
Baygun