Low Damage (Wrist Rocket Launcher): Wrist rockets typically are fairly weak compared to other rocket launchers, typically inflicting damage equivalent to that of a grenade or heavy blaster rifle.
This gives it a slow rate of fire compared to many modern designs.
Slow Reload (Missile Launcher): The TwinStar's missile tube takes some time to reload, as the warhead must be primed and then carefully placed into the tube so that the friction igniters can make contact with the priming fuses.
Low Ammunition Capacity (Missile Launcher): The TwinStar's missile tube only carries a single warhead.
Good Ammunition capacity (Wrist Rocket Launcher): Compared to systems like the MM9, the TwinStar carries a fairly large number of wrist rockets.
High Rate of Fire (Wrist Rocket Launcher): The "wrist rockets" used by the TwinStar can be rapidly fired thanks to their relatively small size and sequential loading, potentially allowing a user to shred apart an enemy squad of armored infantry or destroy a light vehicle in short order.
Excellent Range (Missile Launcher): The single-shot nature of the TwinStar means that it can fit larger ordnance that commensurately has a fairly large range, and most payloads have enough fuel to reach across most battlefields.
Superior Stopping Power (Missile Launcher): The single-shot nature of the TwinStar's missile tube means that it can fit larger ordnance that commensurately has a fairly heavy payload, and most fired warheads such as proton rockets or a GX-15 are capable of inflicting extremely heavy damage to starfighters, armored vehicles, and many fighting positions.
While not typically dangerous to vehicles, the wrist rockets can be particularly useful against heavily armored individuals and battle droids. The upper tube acts as a superimposed wrist rocket launcher, firing relatively tiny wrist rockets in sequential order. This tube can house missiles as a diminutive 3t3 to ones as large as a proton rocket. The larger bottom tube acts as a typical, single-shot launcher that can fire a wide variety of starfighter-grade missiles, making it well-suited for anti-vehicle and anti-aircraft work.
Twin Tube Design: The TwinStar is a combination of two separate warhead launchers.
Mechanical Operation: The TwinStar uses purely mechanical mechanisms to operate to include a flip-up site and friction rocket igniters, meaning that Ion, EMP, and weapons with similar effects are unlikely to affect its function.