You can find the Supply Signal in...
| From | Chance | Amount | 
|---|---|---|
|  Large Present | 6.67% | ×1 | 
|  Elite Crate | 3.72% | ×1-3 | 
|  Underwater Lab - Elite Crate | 3.72% | ×1-3 | 
|  Locked Crate | 1.43% | ×1 | 
|  Locked Crate - Oilrig | 1.43% | ×1 | 
|  Missile Silo Inside Scientist | 1.43% | ×1 | 
|  Wagon - Military Crate | 1% | ×1 | 
|  Gingerbread Mine Present | 1% | ×1 | 
|  Military Crate | 1% | ×1 | 
|  Underwater Lab - Normal Crate 1 | 1% | ×1 | 
|  Abandoned Military Base Scientist | 0.36% | ×1 | 
|  Airfield Scientist | 0.36% | ×1 | 
|  Arctic Research Base Scientist | 0.36% | ×1 | 
|  Bradley Scientist | 0.36% | ×1 | 
|  Cargo Ship Scientist | 0.36% | ×1 | 
|  Excavator Scientist | 0.36% | ×1 | 
|  Launch Site Scientist | 0.36% | ×1 | 
|  Missile Silo Outside Scientist | 0.36% | ×1 | 
|  Oil Rig Scientist | 0.36% | ×1 | 
|  Trainyard Scientist | 0.36% | ×1 | 
|  Bradley Heavy Flamethrower Scientist | 0.29% | ×1-2 | 
|  Bradley Heavy M249 Scientist | 0.29% | ×1-2 | 
|  Bradley Heavy Minigun Scientist | 0.29% | ×1-2 | 
|  Bradley Heavy Spas-12 Scientist | 0.29% | ×1-2 | 
|  Oil Rig Heavy Flamethrower Scientist | 0.29% | ×1-2 | 
|  Oil Rig Heavy M249 Scientist | 0.29% | ×1-2 | 
|  Oil Rig Heavy Minigun Scientist | 0.29% | ×1-2 | 
|  Oil Rig Heavy Spas-12 Scientist | 0.29% | ×1-2 |