Understand Heavy Trauma
Useful when…
- Increase the Impact component of a compatible melee weapon’s damage.
- Choose a lower rank when the listed bonus is useful but the full fusion cost is not.
Effect and application
Heavy Trauma is a standard-slot melee mod with Naramon polarity. It adds +15% Impact at rank 0, +60% at rank 3, and +90% at rank 5. Those figures describe the mod’s Impact bonus, not final weapon damage.
Ranking and cost
The mod starts at 2 drain and has a maximum rank of 5. The listed rank 4-to-5 step costs 480 Endo and 23,184 Credits, increasing the bonus from the rank 3 value of +60% to +90%. Consider stopping earlier if that added Impact bonus is less valuable to your build than the fusion resources or capacity it requires.
Alternatives and exclusions
Flawed Heavy Trauma reaches +60% Impact at rank 3 with base drain 2, while Primed Heavy Trauma reaches +165% at rank 10. Heavy Trauma cannot be equipped alongside either. Amalgam Organ Shatter instead lists critical damage and heavy-attack wind-up speed, so it addresses different stats rather than serving as another Impact bonus.
Limitations and tradeoffs
- The bonus is specifically to Impact damage.
- The final rank step has substantial listed Endo and Credit costs.
Common mistakes to avoid
- Reading +90% Impact as a final damage multiplier for every attack component.
- Equipping it together with Flawed or Primed Heavy Trauma despite their listed incompatibility.