A revengineer is the equivalent of a trolldier but an engineer.
Gear[]
Primary[]
The Frontier justice, due to its revenge crit system.
Secondary[]
It doesnt really matter, but stock pistol is fun to use for no particular reason.
Melee[]
The stock is fine, but gunslinger is my recommendation because of the mini sentry.
Cosmetics[]
Looks vary.
Behavior[]
Revengineers will place a sentry in the open, and camp in another room. When the sentry is destroyed, the revengineer will use the revenge crits to kill enemies. Again, this friendly is kind of like trolldier, as it isnt very friendly.