Murphy's Laws of SCP:SL: These are the steadfast rules that will get you through the game and any veteran can attest to.

1. If you're unsure if you'll survive an encounter - you probably won't.
2. Always suspect the Dog can see you; never suspect the dog can't see you.
3. Never hide when running is still an option.
4. Hiding is never a long-term solution.
5. When in doubt, always assume the SCP is waiting for you to run out from where you are.
6. When in doubt, always assume the enemy is spawning exactly as you're reaching the surface.
7. Unless you have one thousand hours in the game, you're not Rambo. If you take on more than your fair share of enemies, you'll have more than your fair share of enemies to survive.
8. Unless you have one thousand hours in the game, you're not Houdini. If you think you can sneak past the SCPs undetected, you better thoroughly assess the situation beforehand.
9. The best way of surviving Peanut, the Plague Doctor, and Larry is to have the hat available.
10. The second best way of surviving SCPs is to have already drunk Coca-Cola.
11. The third best way of surviving an SCP is to fight it.
12. Don't forget that you can run and fight at the same time.
13. If you're cornered by an SCP, they know you'll try to run for the exit and will position themselves accordingly.
14. When engaged with an SCP, the safest space to be is outside their range. The second safest place is practically inside them. The middle ground between these two is where they'll kill you.
15. When out of options, a well-placed flashbang will be what saves you from an angry Shy Guy coming towards you.
16. An O5 card is only useful when you wish you had one.
17. You'll use the MicroHID a lot less than you should.
18. Never forget that distance is your friend.
19. Shy Guy will appear in front of you when you least expect it.
20. And peanut will appear behind you when you least expect it.
21. Sweat the small stuff. Simply being able to consistently be the first to pick up an item will make you a lot more powerful.
22. Your ability to aim - not your weapon - is 90% of what decides if you'll win a gunfight. Practice it.
23. A skilled Computer is the deadliest enemy in the game and the easiest to kill. Don't forget this.
24. Never forget that you can keep your distance and decide if a fight is worth it before you enter it.
25. And don't forget: It's called "Disposable-Class" for a reason.

Updates:
26. Shy Guy will know you saw him even when you know you didn't.