Changing the introduction on desert isle

[porcelain 1]

I wish to change the introduction sequence (you know, where there's the burnt out m113 and jeeps with a russian patrol on desert isle, in vanilla ofp). Currently i just want to change it because the intro in the mod i'm using is a bit boring (it's just a bunch of guys standing around with nothing going on). What file is this introduction stored in? how do i replace it with my own mission.sqm and most importantly how do i do this while changing as few things as possible?

[*zeewolf* 4]

The intro is stored as a mission in dta\Anims.pbo. When you use a mod folder with that file your mod is overriding the default anims.pbo with its own missions. The name of the actual intro mission being run when the game starts is set by the mod's main config.cpp/.bin (mod folder\bin\config.cpp) under CfgWorlds.DefaultWorld.Cutscenes.

The default mission is Dta\anims.pbo\intro.intro, you can either add a new mission to your anims.pbo and change the mod's config.cpp to this new mission (or allow multiple possible intros as used on Everon or Malden), or you can just edit Mod folder\Dta\anims.pbo\intro.intro using the mission editor.