Gah, sounds frustrating Ajidica.
I'll assume you have python exceptions on in Civ4Config and that's not reporting anything either.. Did you have a working version earlier that ran without crashes; if so do you have a saved version you can revert to, or recall what was changed since it started crashing? Well here are some potential sources of crash bugs I recall from adapting the FF mod for Warhammer:
One untraceable crash that got me before was vanilla game Events going off; make sure to replace the /Events XML files with empty ones.
Also scroll through the whole pedia of units/buildings to make sure there's not missing art (red orbs) that can cause crashes.
FF has some tags defined in globaldefinesalt.xml (UNIT_SLAVE, PROMOTION_SHROUDED, etc etc) that the DLL tries to load, make sure you still have XML tags with those names.
In adapting FF to the Warhammer mod, we had to deal with crashes arising from the various FF python calls in CvGameUtils and Eventmanager as well as from the Lairs code in entrypoints/CvFlavourInterface so you'll have to read through those files closely; we finally ended up including improvements for their existing Lair tagnames such as IMPROVEMENT_MARNOK_HILLGIANT_STEADING.
One quick testing approach that let us find the above Lairs crash was to start a Custom Game with all FF gameoptions turned off. If a specific FF gameoption is causing a crash, you can track it down pretty quickly that way.
Another issue is there are references to the Fall Further directory in several python, XML and resource files, that you need to change to refer to the correct folder name of your mod; I'll attach a recent patch from Warhammer that corrects the path errors so you can see which files you'll need to edit.
If you're also including stuff from the RevDCM mod DLL, I think its DLL refers to several tech tagnames such as TECH_THEOLOGY, Scientific Method, Communism, and Liberalism IIRC, check with people on the RevDCM forum and you may need to include techs with those XML tagnames to avoid problems.
That's all I can think of offhand; frustrating crashbugs are common and the only solution is to keep frequent working backups and add slowly while testing. Well keep at it and I hope to be playing your mod soon!