Are you serious? I've met only a handful of flight crews I couldn't go through in my sleep armed, with the exception of maybe a FFDO. As the rule the flight deck are the most physically able to resist a hijacking, but even most of them aren't that in shape and able to rock in roll, in my estimation, not to mention there's only two of them and most are unarmed. If I had a handful of armed, trained men, used to killing and working as a team, I would take out 99% of the flight crews I've seen in less than a minute. The only real slow down is the door, to be honest.

Without the door, it's over. Unless you have other armed people in the cabin, close to the door and able to react, be they FFDO, FAM or LEO.

Personally, if I was a hijacker, I'd stack my team all at the front. We'd have a prearranged signal to activate, then all go to work. The front would be pacified before most of FC could put down their Bloody Marys and paperwork and laptops. Their OODA loop wouldn't have time to cycle. One or two FAs? Not an issue. They'd be done quick.

Then there'd be two issues to deal with - 1) holding the line against any of the back pax (or surviving, injured F pax) that made a push and 2) getting the door opened. The door isn't invulnerable, but we'd need time to work. Personally, depending on how big my team was, I might break half off and assault the back. Just go back there and start killing. They wouldn't make it but they'd kill enough to block up the aisle and create chaos and keep people's heads down and give them no time to plot and plan and work up their courage.

That's how I'd do it. Most wouldn't fight back and those that do are impeded by not working together (lack of teamwork and cohesion), lack of training (for most, some will have it), lack of equipment (no real weapons) and environment (depending on config, only one or two aisles (fighting in phone booth - no lateral movement. It's all one fatal funnel)). They're way behind the curve in the OODA loop and that's a killer when someone's trying to serve you death on a cracker. The usual response is to freeze and try and figure out what's going on. This is the wrong response. The correct response is to violently attack the threat and disrupt the team, even though you might not (probably won't) survive. Break their rhythm. I'd put my money in Vegas on maybe a handful (if that) actually doing this. If it does happen, it'll be ex/current military and/or ex-LEOs leading the charge, for the most part.

But very, very few others will (although some might). They don't have the training and/or natural inclination. So they'll try to wait it out and hope to get the rest of the herd/pack/group (whatever you want to call it) to all work together and attack. By that time it will be too late - the hijackers willl have the advantageous position and can ride it out, until their mission is accomplished (whatever that might be (use plane as missle, just crash it, standard hijacking).

But my short answer to your position is that the only crew I'm worried about resisting are FFDOs. The rest are easily handled.