it’s based on him being an extremely unreliable narrator, which is outright confirmed.
it’s not a dream, patrick makes a call to his lawyer at that point which is brought up later at the end.
we saw him kill police officers. probably wasn't real, but it's kind of impossible to know
no comment
i don’t think walter’s been in a proper gunfight before either. jack and the drug dealer who was about to kill jesse were both already severely injured when walter killed them, and walter took mike’s gun before he killed him. the only time he
may have killed someone in this sort of scenario was in the season 4 finale, where
he killed two of gus’s men offscreen.
gun > knife. trying to get up close to someone who goes for point blank headshots is not a very good idea.
walter can draw his gun in just under a second. speed is equal so patrick's speed advantage means nothing (plus his current rating is bullshit anyways)
i don't think he's ever missed a shot. in fact he usually lands a headshot. it doesn't help that patrick is trying to get close, meaning walter hardly needs to aim.