[hlcoders] Question about the EULA again

[Dave R. Meyers]

Using the newly finished Infinity mod, I can remove all the specified entities from any map, then go back in and place what ever "stuff" I want.   So I can run any map under a mod that supports the files written buy Infinity, so my question is this:   If I want create 'dat' files for Counter Strike maps, Op4 map, and TFC maps, are there any legal issues I need to address first?   I do not need to modify or distribute the maps, just the 'dat' file.   Any concerns???   Dave