I usually don't install mods on games until I feel it is getting boring (Finished or almost finished it) but in just cause 2, pretty much the first thing I did after finishing 2 or 3 missions was install mods. All of the stronghold takeovers are exactly the same, even the same order of doing things and the story isn't very immersive, but that gives way to mods. Only downside is the missions are terrible. Base jumping, gliding, parachuting, skydiving, pretty much anything you could want to do with a grapple hook. String cars to planes and watch it all explode. After the first mission (Intro/tutorial kinda thing, only goes for a couple minutes) you get to free roam in a massive map with no restrictions or 'do this mission to unlock an area' and destroy stuff.