I just ran infected with us going a bit over an hour or so. We did in fact complete it. Infected is probably the easiest of all STF. I know you have said that you really have no time for a fleet, but maybe that is what you really need to do in order to be able to do all the STF. Get with a fleet that does them regularly as they would be able to help you though them. Using ts or vent is suggested to communicate though. Chat is available but is very limited when you fighting.