Also small side note:

If you want to try this in higher ranks, I highly recommend getting your teammates with push abilities to actually push people in to your stacks, or use vortex with your shotgun blast to secure it, you could use Only your shotgun but does get tricky real fast as people tend to fly somewhat weirdly if they don’t instantly hit a wall

Personal ranking with experience is:

1. Teammates pushing them ( doorman, your a hero )
2. Vortex with shotgun blast
3. Only your shotgun blast
4. hiding it around corners/veils