It is indeed AH-64 gun tape. I dont know whose engagement this one is other than its Afghanistan and its not an official Army released video. Any gun tape that you see with the symbology set not censored out is basically "leaked" gun tape. When the Army releases video to the press they will put little black lines over all of the symbology. But, after 10 years of fighting two wars with thousands of hours of Apache gun tape out there, I cant imagine how it could possible make a difference. The symbology sets they have in Call of Duty and Battlefield are nearly exact replicas.
The video is a both the lead and trail ships video compiled to make one video. Both ships are engaging with 30mm and AGM-114K2A Hellfire.
The large broken box for the Hellfire with the word "BACKSCATTER" means that the missile is in within constraints to fire off the rail but the laser is getting multiple returns (usually from smoke and dust) so the weapons processor (WP) is not going to let the gunner shoot in Lock-On Before Launch (LOBL) mode but he can still get the missile of in Lock-On After Launch (LOAL) mode.
With the 30mm when is says "EL LIMIT" that is an elevation limit based on the current ballistic solution being calculated. Those familiar with shooting know that bullets travel in an arc to hit the target. The farther the target, the higher the arc so eventually the elevation will be too high to articulate the gun. Same goes with the depression and both based on the aircraft attitude at the time the solution is being calculated that is why you see it flashing on and off as they maneuver.
Same with the "AZ LIMIT" it is the azimuth limit that the gun can articulate left or right, 89 degrees max or less if the opposite crew member has rockets or missiles actioned. If the opposite crew member pulls the trigger for missile/rocket the gun will inhibit all together to keep from hitting the ordinance with one of your own rounds.
If anybody has any specific questions about what they are seeing I have no problem answering them either.