2x Cruise Missile Speed
Cruise missiles speed increased from 78m/s to 139m/s. Not quite double, but calling this the "1.78x Missile Speed Mod" isn’t as catchy. This is the absolute maximum speed that still allows for the pinpoint accuracy present in the vanilla missile. Unlike the the Supersonic Cruise Missile Mod, this one is slow enough to get shot down by CWIS.
Credit to Vanilla for cracking the obtuse way CC2 missiles need to be modded in order to change their flight speed.