QUOTE (MikeKozar @ Jul 20 2011, 09:27 PM)

I've used a number of critters, including one experimental paracritter biodrone based on the Nyah-gwaheh legend. They get annihilated, for a few simple reasons: They lack ranged attacks, they lack advanced stealth abilities to bring melee into play, they have negligible armor, and they often don't get multiple IPs. Compare the threat rating of a critter to a typical corp thug with an MP5 and armor jacket and there's no comparison - when the PCs are ready for corporate security, animals just aren't in the fight. Even the paracritters from the main book are a joke at my table - most of them bring Natural Weapon 5P AP0 (or worse). They're slightly more intimidating then a go-ganger with a pool cue, which is to say laughable.
This is just my experience, and it sounds like you have gotten critters to work at your table. Care to elaborate on some of the encounters?
Sure. The point I was making is that critters don't need to be used in combat to make them a worthwhile challenge, they just need to take the players out of their comfort zone. I used a Gabriel hound one time to do that (I won't lie, most of the effective critters were paranormal). The PC made short work of the creature once combat came up, but he had serious doubt about actually attacking it in the first place since he wasn't sure if it was just a bum, or not.
As far as combat goes, I had a Tamanous agent, an adept hired to go around and check things out at a clinic they were connected to, that used a Basilisk to slow down opposition and stone skin them. Once the characters were completely stone skinned, he'd let them suffocate, and break the shell to get at the useful interior parts. Critters can be effective in combat, but not on their own. You need to use numbers or superior training rules to your advantage in those cases.