There was another recent thread with regard to same. The point was a letter encouraging pilots to consider this and look around at what you could use as a weapon and how you could use it.
At the point where some-one 'forces' their way into the cockpit, you do not try to remember what the company says you should do.
Events have now shown what happens if you follow the 'old' company line.
Nowadays, you've got to fight and be prepared to go all the way!