I made this plugin after watching this:
https://youtu.be/tMU04d_arxI
This is plugin sets your camera to follow your projectiles.
To use it, just toggle it on with the command:
sm_pc
Then, the camera will jump to the last projectile you shot while you are holding the
reaload key.
Here is a demo:
https://youtu.be/4nOER06g9ZI
For extra fun use
this