I actually was led to believe there was less a body count than the 3rd one which was in the Guiness book of records for violence due to body count.
Reviews are saying this is more grittily, realisticly violent than the opening scenes of Saving Private Ryan.
It's been getting mixed reviews but I believe most are positive.
Depends what you go to the film expecting - it's a Rambo film. It makes genuine pointsd about the true atrocities of what's going on in Burma but it's still a Rambo film - you go to see it if you want to see arseholes getting their comeuppance in horrible graphic violent detail and get your pulse going!
It's no wonder Stallone endorsed McCain.