Soldato
Several hundred hours later and it stands as one of my favourite games of all time.
60+ hours in now and 20% complete, I can see my playtime being similar.
I have to say its also becoming one of my favourites as well. Its awesome when you call in your choppa after a hard mission and it arrives blasting the man who sold the world . Just developed the fulton that can pick up trucks and tanks and gone on the hunt for vehicles. Took me a good few goes at mission 10 to extract a transport specialist. Theres just so much to do, I love it.
You should check out the older MGS games some time if you like this. They are different in that they dont have all this mother base stuff, but still worth playing. MGS4 is quite heavy in the cutscene department, but still got a good balance of gameplay mixed in. I played through twice on PS3 and loved it both times. i wish it was available for Steam along with the remastered HD collection.