Man you are really hung up on 8 months. Spies can be inside a system or undercover for years. Leak info and have all the freedom of an area before anyone knows better. I think you been watching too much James Bond or mission impossible movies. Spy can do it all in 3 days or less. It takes time to run a job like that. ****, theives will work a job for a year or so to just get clearance to different levels of access. Once they have it all figured out. The job does on with out a problem. Maybe she even pulled this stunt with the Noah's little neighborhood 1st. Her comic book from the last season was even named "wolves or wolf something. Idk, but time isn't the issue..it's the results.
So, what do you think they needed to learn in eight months that couldn't be learned in two weeks, three at most?
Besides, your comparison to thieves doesn't apply to this. Why? Because thieves have to take into account alarms, security systems and an army of guards. Alexandra didn't have any of that. Hell, they didn't even have an armed guard up in the tower of the church until Sasha volunteered and Deanna told Rick and company that there was nothing up there but an empty rifle!
Another flaw in your hypothesis about Enid being used on Noah's neighborhood is that Noah was there before leaving. If Enid does the same eight month stay, which you claim she would do in Alexandra in order to get as much information as possible, that means that Noah would have seen her many times at his community and then recognized her again at Alexandra. Both are small communities, they would have eventually run into each other (unless one of them was being held captive in a back building, like how Glenn and Maggie, and eventually Andrea, were held by the Governor and his men in Season 3), which is not the case.
What is seen or heard on screen is valid, though people fail to get that. For a while, after the Season 4 mid-season finale, people thought the Governor was still alive, despite being stabbed by Michonne and even seeing from his point of view, his death by gunshot. People thought he was still alive, because we never see the headshot occur on screen. What it took to confirm his death was the start of the Season 4 mid-season premiere, where we see the Governor's dead body with a bullet hole in his head for the fans to get it. You see Enid climbing over the fence, but this is explained when she tells Carl (and us) she does it because she feels like she belongs out there. In the flashback at the start of the episode, we see her losing her parents, to traveling for a bit, all by herself until she ended up at Alexandra. If she had encountered the Wolves, there would have been a scene included in that montage. If you don't believe that, how about the fact that anyone who is not apart of their pack that they come across, they killed (like how the Wolves tried to kill Morgan when they came across him? Or how about the man they murdered and the woman they tied to a tree and left to get eaten by Walkers, you know, the victims Aaron and Daryl found? Or the man in the orange poncho for crying out loud?). Enid was with her parents from what we see, and they sure didn't show any Ws on their corpse's foreheads. That means she wasn't a part of the Wolves, and if the Wolves had found her, they would have killed her, not use her as a spy (as they would have sent one of their own, and then they wouldn't have waited eight freakin' months to attack). THAT is going from what's shown in the show. Now, where in the show does it suggest that she's a member of the Wolves?
they had to fire bomb the guard on top of the gate watching over the mayor lady or whatever she is . there is no top of the wall at the gate (again design flaw) there would just be a dude standing walking around that area and the front is a double gate system with a fence and a metal gate behind that . there didn't seem to be blood or a fiery corpse left there it seemed to me( and was filmed as though ) that the Molotov cocktail to the guards face was the opening salvo in there attack .
Well, we didn't see the ground, so we don't know if there was any blood around that area. Plus, there's a good chance that the Wolf they sent over the wall used a knife to slit the gate guard's throat and then was dragged off before it completely bled out (as they were all armed with blade weapons and were dragging bodies out into the road). Another possibility as to why the gate was open and unguarded: the guard at the gate was the woman that got stabbed in the gut and taken to Denise (the one in the yellow shirt that was rescued by Aaron and Rosita, the one who died on the stretcher), and that the gate was hanging open because Deanna went out to check on her only living son, the guy at the tower, while all hell was breaking loose inside the community. This seems more likely just thinking back to the episode. When we first see him attempting to snipe the Wolves, it's in direction of the road that leads to the front gate (a similar POV we've seen from Sasha when she spotted people running towards the fight between Rick and Pete).