Finally got to play this over Christmas - utterly brilliant so far! Nearly rank/level 200 now, and can honestly say, it is quite addictive - and such a time sink it's unreal - I often think "just one more mission" and find that another hour goes in no time
I must admit, the story/lore seem the usual far-fetched mental Kojima nonsense, so I've tried my best to not bother trying to decipher that - but it's certainly hasn't hurt the gameplay experience for me.
I do quite like the whole feeling of being connected to other players and helping them out - I wasn't sure I would like that, as finding ladders, ropes and bridges everywhere felt a bit like cheating - but it works really well! A few times now, my bacon has been saved by a well placed charger, shelter or discarded item of equipment. And helping to rebuild a road has been great - that thing really helped move around the second area!
That fact I haven't touched another game over Christmas, just shows me what a draw this one is!
@neoglow many thanks for this!