You're correct that this thread is posted in the wrong subforum, but don't look for insults. lord_shadow read as perfectly conversational to me, and is asking legitimate questions. That an AI is even more problematic to handle than a spirit or technomancer is true, but not something that's necessarily reason enough to shut down the option.
As to drone weaponry, the Ingram White Knight is a great LMG, but like other MGs (or more generally heavy weapons) is a big weapon for serious firepower and suppression. It's cheaper and often easier to use carbines/assault rifles, and I've heard of successful riggers who've slapped sniper rifles onto blimp drones for their own overwatch. An AI would have the same issues getting heavy hardware that other characters would, in addition to having a LOT to pay for. As far as matrix combat and actions...it's an AI. That's inevitably going to come up, if not soon than eventually - unless your GM has decided to allow you to bypass the one main obstacle of an AI which can potentially be as bad an idea as a GM running a campaign with awakened and never running across Background Count. It's inconvenient, maybe dangerous, but it's part of the setting and should be there at least some of the time.