Does it take that much muscle memory to pull the slide back on a gun to eject a chambered round?
I think the maneuver he tried was a fast dismantling of the gun, i.e. you need to pull back the slide a bit, release the security lever (different depending in the maker of the gun) and then slide the whole thing forward until you have the lower and upper part of the gun in hand effectively neutralizing it as a threat for the time being.
For a simple pull back of the slide you really don't need muscle memory, it's basic gun skills.
As others have already said it was quite generic and i'm beginning to wonder if this is what we can expect in the future.. basic stuff (tech, important people) gets lost/needs to be retrieved and them team goes out to do it while continuing to bond/develop their characters.
I'm reminded a bit of Chuck which had a similar simple structure but somehow it was just more fun to watch even in the early stages and it didn't have this huge expectation to live up to (granted.. it rarely, if ever tried to break out of the mold and become more but it was ok because it was consistently entertaining).
Shield really needs to be better.. the movies set the bar quite high and even if the show doesn't have movie budgets it shouldn't matter if the scripts are solid and engaging which they aren't.
At times my attention was elsewhere and i did other stuff so i missed some scenes including the reason why the scientist defected which didn't interest me at all and that is a very bad sign for any show.
A bit up a poster said his wife quit the show and i can't fault her.. there is basically nothing to hold anyone onto the show who isn't a comic book fan. Clark Gregg does a fantastic job as Coulson which is about the only thing i am looking forward each show.
The need to up the stakes fast and show us some meat other than a team of highly trained and talented people do weird missions because that's been done in many other shows.. slapping on the Marvel/Shield logo is not enough to get 7 seasons out of that premise.