Hello, if anyone here speaks English then it would be appreciated but I want to ask questions about the map's Easter eggs

I noticed there are Lambda symbols in small cube forms or large square glass plates that you can break but for the love of me I don't know the exact location and how many there is. Can anyone of you guys help me out?

Oh and I know the first hentai room can be accessed by heading to the left Tank to enter the large Special spawn area and hit the button at the white stairs in front of you. Then head back out to the hall and go outside then turn right to find the pool, next to it is a soda machine that you can hold E to interact with. Once done, head to the smaller area that you'll practice Bhopping and explosion cancel, go to the part with a long walk down and you'll see the grenade jump practice with elevated position

Look to the left and start whacking the wall, bring a melee weapon before doing this, do it enough times and it'll break to reveal a long pathway. Grab a painkiller and chug once heal goes below 50 because the walkway hurts you 2 HP every second and voila, you've reached the room