Played the course for about an hour and managed to do my best score as 1380. Tired of it right now, but I'll make sure to try what this tutorial showed! Very detailed, very nice :)

i got 1610 and earning me all 4 trinkets

Finally got it, great guide, I followed all of the steps except the first two enemy dummies. I throw an airstrike on the round before my winning one, it killed the first two dummies if you line it up properly, saved me about 2 seconds.

Top i got is 1480 but due to the mass screenshot deletation i deleted it

Can you re-upload the video?

After you positioned yourself, look down. Press Q or deploy an airstrike marker. Quickly kill yourself with K and press Space. Then Even quickly-er (what?) get your deagle out and headshot the beginning dummy twice in the head. When the air strike finally hits, it will register as those two dummies being killed.
For me this was the only issue. The ending. Hopefully this helped and maybe you just learned you could do that airstrike trick. Have a good day now. (2 OF 2)

Heres a technique I used. I got it within an hour. My only struggle was my long jump bind that kept giving me a -10 points for crouching. Here is how you do it.
First you go to the end. Don't try doing anything at all. It is pointless, this first round of the course we are just gonna go to the end door.
Now don't go in it. At the end there is a drop with 2 enemy dummies and 1 blue one. You are gonna position yourself facing either side of the wall between the dummies. (It is VERY important you have one on your right and left not staring at one.) (1 OF 2)

you need under 50secs

fuck that how do you do it with console

Type this in console so your left alt key is long jump key:
setbind LeftAlt "Duck | Jump" 1