Iconic counters:

 

Multi hex sized vehicles.

 

Many makes and models!

 

 

The SPI/TSR experimentation with man on man combat was a fascinating look into warfare, history and game mechanics.

Other Titles such as Patrol! and Raid! come to mind.  I owned the original Sniper! where layers of rules added more and more flavour.

Sadly however the paperwork involved for hidden movement slowed the whole thing down.

Regardless a fun exploration!