This is what you call infiltrating! Op?

[Snydenthur]

I think this is quite normal. I've seen it a lot and I've done it myself, only I didn't get to be there as long as on the video. A lot of times I seem to be the only one that sees enemy in the middle of our group of people. But it's kind of hard to shoot at him, since there are so many teammates around. I think it happens because people are dumb or they just don't expect someone to just run in a group of enemies alone. Either way, it happens a lot.

And it is a fact that some people can't see infiltrators at all for some reason. I can see them sometimes up to 20-30 meters (medium graphics quality) while the teammate that stands right next to that infiltrator is completely unaware that he is next to an enemy.