Trying to make improvements to NTW

[Sigma]

As, the title says, I am trying to modify NTW singleplayer campaign to make it more historical, but I've ran into a slight road bump (I'm a noob, first time I've ever modded)

Would anyone here know how to change faction names like for example, change the faction name Byzantine Empire so it would appear as Moldavia Wallachia in game? when you play as it and select it?

How do I assign/create leaders for a newly created faction? and how do I move/ delete/ create starting units?

and lastly, how do I access .BIF files? its all gibberish

[Garnier]

I've modded MTW1 in the past, and its a lot tougher than RTW/M2TW.

The .org is a better site for MTW1 modding.
Here are a bunch of tutorials and information. Opening BIF files is discussed here.

Here is where you should ask specific questions.