Something I didn't quite get to mention due to it being very busy and noisy as I was recording, was the fact that putting a lot of pressure on a Gabriel is also important.
It can cause Gabriels to miss their shot. In terms of Pilots Vs. Gabriel, I'm saving that for the next entry on countering Gabriel, going over Ion Cannons and Rocket Launchers, as well as any other Anti Mech weapons.
In case you want to counter a Gabriel using Anti-Mech, just be very mindful of your head, as peeking for too long will get you killed EASILY, as well as his AoE can be threatening close range.


Here's a video covering a basic rundown on how to counter Gabriel.
It goes over some basic strategy, but beware as it does not cover Mecha matchups or much of Pilot Vs Gabe, just how to catch a wild Gabriel.