Not only does the video do a great job of highlighting said glitches, but it also takes shots at Epic Games and its developers.
I typed the list out for ya'll below.
1. Boom Shield Glitch - Use any weapon with the Boom Shield
2. Weapon Slide Glitch - Avoid getting shot while picking up a weapon
3. Fake Walls Glitch - Melee and tag people through walls
4. Crab Walk Glitch - Move at roadie run speed while shooting
5. Kung Fu Flip Glitch - Jump out of any map
7. Infinite Ammo
8. Chainsaw With Any Weapon
9. Runaway Chainsaw - Break out the chainsaw animation early
10. Slow Arse Match Making - Here is a 20 minute wait sped up to 20 seconds
11. Security Laser Glitch - Fall through the lasers without dying
12. Dummy Glitch - Become Speedy Gonzalez
13. Invisible Glitch - Become the Invisible Man
14. The Shotgun - The weapon has a mind of its own
16. Shotgun and Boomshot Blind Fire Only Work If You're On Host Team