Nexus Clash

The desert variant of the oil rig is named 'Desert Oilrig'. The western seas appears to have a regular variant, named 'Oil Rig'. One should be changed, so the way of spelling it is consistent.

Sure, it's "Desert Oil Rig" now.

Funnily enough, superheavies weren't spawning correctly at Desert Oil Rigs because I'd assumed this spelling when laying out superheavies. They should work now.