I've watched the youtube video and still can't get in. They make it look so easy but they are able to tighten their hook all the way and I can't. I stand the table up on end, climb up on top of the table, hook the ceiling inside the vent, and tighten the hook, but I just bob up and down outside the vent. I can't tighten it enough to lift me up inside.

Also I want to grab the molotov, so it doesn't explode inside my computer room. I need to hug the ceiling to do that. The table doesn't give enough height. I've tried moving pallets into the computer room and stacked pallets up on top of the table, and even with two pallets on top, I didn't have enough height. It also teetered and collapsed shortly after.

What's the trick to getting in?

I think I should be able to enter the vents from the roof. There's hatches up on the roof. Why can't I use one of the roof hatches?

Basically: the hook doesn't work for me like it does for this guy:

Me: hours of frustration and failure

It’s hard to do, and I’ll admit it took me a few tries to get it right. You’re able to actually hook up into the vent through the control room without any assistance; just the hook and the right jump will let you throw it to the high side of the vent wall. When you tighten the cable you’ll bob outside the vent, but if you crouch and hold spacebar (at least that’s how mantling worked for me) you’ll be able to pull into the vent at the right moment.

It’s a struggle but certainly possible.

I cant even tighten the hook 💀🙏 (idk how to do that lol)

You use the scroll wheel to tighten or slacken the hook. One way tightens it, the other way slackens it. It takes a good bit of scrolling the wheel to lift you up off the ground.