I don't know if this has been found already but I'm going to post as if this is new. while I was playing breach on haven I used my ult while jumping out of mid window and found that it made me jump higher and farther. I was intrigued and after the game I went into training mode to test things out. I found out that if you ult then jump right after you click the mouse to start the alt your do a sort of slow mo jump that lets you keep your forward momentum while falling as if you were Jett holding space. this can allow you to reach places that you would not be able to get on to regularly. some places include the truck on bind and the big box on haven c site. other places can reach but I wont go into all of them.

you can even aim your ult to the side and hit long and still strive and get on top of the box.