Sikboy, your interpretation powers are really fascinating. I never posted the video of what I've seen from the tower. So, your "mandoland / what is seen in the film" is just sikboydreamland.
Hey boy, N1k2 is not a glider, it has a 1900hp engine more than capable to speed up the plane without needing to dive away.
The pattern you describe in your nice picture is perfectly possible to achieve with any plane, you only need to be skillfull enough to level your plane when you have still enough control (using flaps or whatever) to not enter in a stall. just level, let the engine to build up E and invert that E (speed) into a new climb.
ammo, why is that firing is not going to do have any braking effect?