itch.io

Idk if any of these are WR. I have yet to see a better Tutorial though. Also have yet to see any post with all  maps sub 20s. 

Best tip i can give is to ignore all of the bots and use the walls that encamps the level to your advantage. Also learning what the guns do and how to use them in your environment is key. Another factor is map elements such as barrels and the jump pads. Finally learning and understanding air strafes is a big benefactor. 

Hey I'm not the guy who got 6s but i got 7s, my technique was jumping with your shotgun then killing the guy with the grenade gun, he will be closest to the walk way. Then quickly throw your gun and grab his and then you have to grenade jump to the end. You will need to understand how to air strafe so you can stop yourself. I wouldn't recommend trying to kill the guard on the end island he rarely hits you so long as you crouch before getting to the island. 

Jk ignore all that i just beat my record by jumping then shooting the barrel with the shotgun then landing on the milk. its easier and way faster. 

I don't have any videos of them but I think I may have the best cumulative time of 2:22.94.

Oh yeah and I found a secret behind the Tutorial level. 

When you start up the game, click "Input" and scroll down then change it yourself.