Currently the best-found route is at 1:15 found here however its my opinion that we can make it better. There has to be a way to throw the bag into the objective from the second floor, cutting out the awkward section where you have to go to the first floor, throw the bag in then backtrack and go up top to get to the vent to leave.

Haracookie stated in his comments he is looking for another way to throw the bag but it dosent seem very possible, hopefully this is something we can look more into together when the discord comes up tough.

I have tried both throwing in the bag from on top of the vent, and also throwing in the bag normally and then climbing up the vent, but both seem barely not possible. I have tried placing deployables to get myself more height so i could jump on the vent, but deployables have no hitboxes so this doesnt work. It would very very maybe be possible to throw the bag from the vent onto the ledge and have the bag bounce off the ledge into the objective, but it seems hard to do and even if its possible it would probably require a specific setup to get it to work. I'm still looking into it tho.