The DFM system is fun.
One thing I hate is that enemies tend to gang on you and just spam rockets, and with so many rockets just waiting to tear you a new one it's hard to do the counter-manoeuvre.
The story is so-so. I just reached Dubai and I'm not really impressed so far.
All in all, apart from the DFM system I find AC5 to be superior in every way.
Confucius says: Man who fart in church sit in his own pew.