Look for pre-assault cues. What notice did the recipient of the initial strike have that they missed?
Watch for things that are consistent across many videos including: poor quality grappling, wild striking, verbal cues, unused escape routes.
Notice how sloppy real fights are. Be careful to avoid saying things to yourself like “I’d just do X.” X often doesn’t work unless you have practiced it against a resisting & free-thinking partner.
Watch the video, then think when or if you would have attempted to access a weapon. Many times the “proper” weapon access time comes and goes in a matter of seconds. You must do it in a way that the draw is not capable of being fouled, but wait long enough that the action is warranted. Accessing the weapon too early or too late can have equally dire consequences. We think after an honest assessment you’ll find that sometimes you may be asked to handle problems without weapons.
The guy in the red shirt kept trying to grapple once he was outclassed in striking, but he obviously had no idea how to grapple. All he knew was to duck his head, go in, and grab. In this situation, be thinking of how to escape from side body lock, stay on your feet when possible, and make use of strikes from mount. Both guys had lots of time and options to run away.