Only tested on android but I am sure that it also works on ios.Root is required for this.
There are 2 save files:
First is saved after Karmageddon,with the heli already in the garage,you can play the false idols to steal the heli again or complete the mission.
On the second save everything is the sam but the story is complete.
On both saves no sidemissions or rampages are completed so you can do that.
Both saves have a bullet proof Banshee in Portland safehouse and Maverick in Stauton safehouse.
Here is the link:http://sharemods.com...csSave.zip.html
Instructions in readme,hope you enjoy =D
If I made a mistake,please correct me