Yes they are.
f**k me. Endless bugs. I shot enemies without a gun countless amount of times. Oh and driven a slanted jeep.
Bought it today. Just flattened a fishing village with a Naval barrage!
There are some annoying bugs! I have seen enemies fall then vanish immediately - how am I meant to loot the corpses! And when the bodies stay I can never find them for all the bloody grass.
Oh an the fact that you can't look around the vehicle when you're driving (at least in ground vehicles) makes avoiding trees/rocks/gun emplacements harder and the driving less fun.
Weapons sound and feel like they have some punch - the different M4 variants are especially nice.
Friendly A.I leaves something to be desired, like someone said earlier they run away when you try and administer first aid, in fact they run around whilst firing their weapon meaning they never hit anything, and twice now they've wandered across my crosshairs just as I'm firing. Once when I was firing an AT launcher, resulting in a horrific and gory death for both of us and me having to start from the checkpoint f**king miles away!
Oh and only 11 missions with no single levels to fool around on. I'm holding out the multiplayer will lift the game up.