I wrote it to simulate system hacking that is more involved than the surface level hacking in the core. And yes, a NetSys focussed App taked a slot, as any App would.
So a hacker doing NetSys isn't required to be on location like the on-site guerilla type hacking describe in the core book? How do you deal with that? I am new to the netrunning thing, and I am confused by the dungeon-crawl (on-site) aspect of it. I thought netrunners can plug in from wherever and still have access to distant nodes... So when would you require your PCs to be present on site, and when not? Would the cyberspace look different then? Sorry, I am always assaulting people with flurries of questions like that, just ignore me if I am a bore to you... I'd understand... :)