When O'Neill fires two AIM-120 missiles at Anubis' ship, he calls "Fox 4, 2 ". Fox 4 is an obsolete term for air-to-air or air-to-surface cannon fire. The call for firing active radar-guided missile such as the AIM-120 would be "Fox 3".
Teal'c says to Daniel that he often spoke of the "rules to which [he] was subjugated...." Subjugate means bring under domination or control, especially by conquest. Teal'c should have said "the rules to which [Daniel] was subject"--the rules he was expected to follow as an ascended being.
When O'Neill fires the F-302's energy weapons at the death gliders, he calls "Fox 4". Fox 4 is an obsolete term for air-to-air or air-to-surface cannon fire. A modern fighter pilot would call "guns, guns, guns". However, O'Neill is a veteran. If his age corresponds to the broadcast date, he would have been 50 years old (DOB 20th Oct 1952) and might well use old terminology, especially under stress.
As usual, when Goa'uld soldiers are shot with a zat gun, they are only shot once, temporarily incapacitating them. Three shots would make them disappear. That would be far better than leaving them behind to tell their superiors.