The Repair Heli is an airborne vehicle that was seen in Base Wars Creator D8Dev's model inventory. The original model appears to have been designed by Roblox users "Nomander" and "Uprise" and was last updated on April 1st, 2017.
It was in D8Dev's inventory and may be added soon, though this cannot be confirmed. Due to the fact that the model was last updated on April 1st, 2017, a.k.a. "April Fool's Day," this vehicle may or may not even be intended as an eventual part of the game. It may have simply been a suggestion, or was made as a joke celebrating April Fools.
ImageAn image of the current Repair Heli model
It may be added to the game on an undetermined date