The Drone Cannon Ex-B is a unique weapon in the Fallout 3 add-on Mothership Zeta.
Gameplay
The Drone Cannon Ex-B is a unique variant of the Drone Cannon. It fires an energy ball with an arcing trajectory, and the fired projectile is capable of ricocheting off of solid objects once. Unlike the standard variant, projectiles from the Ex-B only detonate on impact with an enemy and have no timed detonation.
Like the Drone Cannon, it is ineffective in V.A.T.S. because the trajectory and ability to ricochet is not taken into account. Instead the projectile will be fired in a straight line, which typically will leave projectiles several meters away from their intended targets.
Durability
The Drone Cannon Ex-B can successfully fire about 417 times from full condition before breaking; the same amount as a normal Drone Cannon.
Variants
- Drone Cannon - the common variant.
Comparison
| Legend | |||
|---|---|---|---|
 |
Weapon name (melee or unarmed) |  |
Weapon name (gun, energy or explosive) |
 |
Damage per attack (damage per projectile) |  |
Damage per second |
 |
Area of effect damage |  |
Effect damage & duration |
 |
Bonus effects |  |
Attacks per second |
 |
Critical chance % multiplier |  |
Critical damage |
 |
Critical effect damage & duration |  |
With all mods attached |
 |
Attacks in V.A.T.S. |  |
Action point cost |
 |
Damage per action point |  |
Weapon spread |
 |
Magazine capacity (shots per reload) |  |
Durability (number of attacks before breaking) |
 |
Weight |  |
Value in caps |
 |
Value to weight ratio |  |
Skill required |
 |
Strength required | ||
| | | | | | | | | | | | | | | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Drone Cannon | 40 | 466.7 | 100 | Timed detonation | 3.33 | x1 | 50 | 30 | 4.7 | 0.5 | 1 | 417 | 18 | 1999 | 111.1 |
| Drone Cannon Ex-B | 40 | 466.7 | 100 | Impact detonation | 3.33 | x1 | 50 | 30 | 4.7 | 0.5 | 1 | 417 | 18 | 1999 | 111.1 |
Location
In the southern area of the Weapons Lab, there is a room where one can use a nearby button to spawn-in Brahmin for the Drones to kill (not the room next to the shooting range, but the room next to the weapons cache). Enter the room and destroy the Drone for the weapon. There is also a second one in the same room that is automatically activated when the first is destroyed.
Bugs
When shot, the projectile will occasionally pass through walls or the floor and do nothing.- In some accounts, when shot, the projectile will just disappear as soon as it hits the target, damaging it but not exploding.
- When shot into deep water, the projectile will disappear, and then reappear and seemingly "float" in place on the surface without exploding. Projectiles fired onto the floating projectile will attach and stack, also without exploding.
- In V.A.T.S. mode, the Ex-B seems to aim like a normal Drone Cannon, landing short of the enemy as if expecting the projectile to bounce.
- On some occasions, the cannon will fire the projectile but will bounce off surfaces and not explode.
Sounds
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Gallery
Concept artwork by Wesley Burt.
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