Get your minds out of the gutter! I am talking about penetration in BF4. Is it me or do the firearm shoot through NOTHING. I cant find any walls or anything. I just figured penetration would be better. Even some glass, its like you have to shoot the glass out before you can shoot through it. I definately know grenades will not burst out glass and continue into the room. First you have to shoot out the window, then toss in the frag. Lots of these tin/metal buildings (like a shop) should be able to be ripped down with an rifle, just saying. What you think? I am having fun though.