I also like the reactive water. I go around map just making water pop with bullets of dropping nades into it.
Lastly, i really like the physics with nades. There is a sonic wave that can be seen when using a nade on land.
Texture map seems very noticeable at some places and I stop to check it out ingame, only to get sprayed by bullets.
Nice Job gamesas Team.
I'll have to try and get some pics of each thing i like.