This.
Lots of good information there.
The "proper" Aimpoints are the 3000 and 5000 models.
A lighting option is an old Surefire 6P with the early early bezel design.
The movie actually did a relatively good job on the weapons used by the principal actors - they are not 100% correct, but they are more correct than many movies.
Most distinctively - 3-75 appears to have had quite a few RO727s, while others had more RO723s with A1 sights.
Also, the film used more contemporary (to the 2000-ish timeframe) accessories than those used historically, but of the right type - notably Aimpoint CompMs and other "short tube" Aimpoints, as well as newer Surefire 660 lights. The painting may not be correct for the timeframe, either.
~Augee