Well, it was a late night and I fooked things up a bit
Retested everything again and now 100% sure of the cracks which worked!
Tiberian Sun/Firestorm - GAME.EXE from Patch v2.03 and the NoCD patcher from the 'other' site!
Yuris Revenge - v1.0 cracked YURI.EXE (Deviance) from 'other' site renamed to RA2MD.EXE + Myth v1.001 cracked GAMEMD.EXE.
C&C Generals - v1.0 cracked GENERALS.EXE (Deviance) from GameCopyWorld.
Zero Hour - v1.04 cracked GENERALS.EXE and GAME.DAT (Iguana/Megatec) from GameCopyWorld.
All games loaded without the DVD, but not sure about any gameplay issues that may arise. Anyone know what happened with Generals/Zero Hour when a bad crack was detected? I recall something about exploding units or something but nothing else?