How to get stuck underground when crossing the line of fire

How to apply for a card in cf Biochemical Hotel? Recently, a friend on the Internet said that every time I squatted down, I could see the inside of the cf Biochemical Hotel, but I couldn't get in, so I just walked around! Or just stuck his leg and couldn't squat at all! Actually, this is the incompleteness of the card. Let's talk about how the biochemical hotel can be completely stuck underground!

What kind of map do you want to see? This card is called an underground BUG, and it is stuck under or above the map according to the loopholes on the cf map. Generally speaking, in the gap between the wall and the box, the corner of the top of the box, the edge of the box, the edge of the wall, the stairs (stairs) and other complex dead corners, most bugs will bleed or get stuck directly or have code errors. When you are stuck, you'd better bring a file with bugs and no bleeding. The specific operation is to move back and forth left and right or back and forth in repeated small steps, and suddenly press the space bar (applicable to the vertical plane of the wall) or the squat key (applicable to the vertical plane of the wall). There are still many maps that can't be stuck and are often coded.