Glitches I encountered:
-Under map while prone
-Blue tinted screen
-Couldn't aim down sights
-Gun became semi-auto instead of full-auto
-Couldn't sprint
-The whole area by one of the first plant sites is glitchy as a whole
-Wasn't getting hitmarkers
-Game would freeze
All these things happened to me throughout my first day of playing the Battlefield 3 beta, however I still had a great time and I thought it was a great experience and once those issues are addressed, I think I will buy Battlefield 3
The blue tinted screen is when you pause it when you die but before it shows who killed you. To fix it just pause and un pause and it will be gone.
The gun becoming semi auto isnt a glitch, you press either up or down on the d pad to switch (one of them is tac light on, the other fire selector). But I have had some where I fell through the map at the first A, and it was annoying then when you go into a crater I fell through, and the not being able to sprint to was pretty annoying.