(adsbygoogle = window.adsbygoogle || []).push({}); Okay, this is terribly easy.

Step 1:
open your FF up in FFViewer

Step 2:
Open the "mp/basemaps.arena" file within FFViewer

Step 3:
Where it says "mapimage", after that it should say something like: "preview_mp_highrise"
What you are going to do is change the preview_ part to one of the other previews that you see in there, here is a list of them:

    

"preview_mp_invasion"

"preview_mp_highrise"

"preview_mp_checkpoint"

"preview_mp_nightshift"

"preview_mp_favela"

"preview_mp_quarry"

"preview_mp_brecourt"

"preview_mp_derail"

"preview_mp_subbase"

"preview_mp_underpass"

"preview_mp_estate"

"preview_mp_rundown"

"preview_mp_boneyard"

"preview_mp_terminal"

"preview_mp_rust"

"preview_mp_storm"

"preview_mp_compact"

"preview_mp_complex"

"preview_mp_crash"

"preview_mp_overgrown"

"preview_mp_abandon"

"preview_mp_fuel2"

"preview_mp_trailerpark"

"preview_mp_vacant"

"preview_mp_strike"

Now, change it and save! Now your done!

You can also change the text in the same file! Enjoy! Video coming soon!

Credit - kiwimoosical

This could save some time.

Nice find, keep up the good work