Remember to check Hardpoints.xml

[Medusa]

New modders might have this problem before, after modding the game it'll not start at all (Crashes to desktop after logo without error message). The problem was most likely caused by a typo in the Hardpoints.xml file, check everysingle hardpoints to make sure that it ends with </Hardpoint> or it'll crash the game instantly.

[Chandler]

That's really true of any XML syntax error, but usually you'll get a message.