The "counter rocket, artillery, mortar" systems, the C-RAMs, continue to fascinate me. An enemy tactic, reduced to a solvable physics equation. The C-RAMs shoot down incoming fire, with a sort of "brrrrrrrpppp" rapid fire.
Whodda thunk, when the CWIS was originally designed to shoot down incoming Bear and Badger missile swarms that these puppies would be in the sand protecting ground bases? Nice.
Of course, they'll do until something better comes along: