Just got my new packs yesterday and as I was looking at Hera & Chopper's side mission I got a bit confused.

The setup instructions say two imp officers, but the map only shows one.

Am I crazy?

It seems Initial Groups should list just 1.

(Because Special Setup allows the IP to deploy group(s), 3 initial groups is pretty standard.)

Yeah, if it's only one officer, the IP is already getting four groups before the special setup. That'd be a lot of activations, albeit mostly of single units.