A couple of things that hopefully will help.

The Supression grenade. It has some strange effects I've noticed.

Minors and majors that can teleport can not when suppressed. Most majors with shields tend to go hide, either from the suppression or the blast effect.

Except for a couple of exceptions:

Knights cannot pull up their smog shield.

Wizards WILL NOT ATTACKING. In fact, they tend to float around like they are stoned and looking for their car the next day. They drift about, regardless of their rank.

I call the Suppressiong Grenade the Stink Bomb, because of these effects. If you see a Wizard, put the stink on them,and they are yours for the taking :)

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It's good, like you say but it's a bit bouncy and the blast radius is a bit weak.

I've wasted many a throw with a bad bounce.

Enemies don't have to jump far to avoid its effects.