A mod that builds upon and tweaks the vanilla experience with a little bit of everything:
crafting, furnaces, resources, turrets, vehicles, enemies and weapons.
[Built for base 2.0 Factorio - Works with Space Age]
The initial pistol keeps respawning in the engineer inventory as an uncommon pistol.
This happens after loading a save if the engineer has an empty weapon slot, but it also happened after I updated to a newer version of this mod.