Yeah i remember that one. You could order a squad to move somewhere only to find them hunkering down behind a wall or something because they were afraid that some sniper was out there.

I think the map was even "deformable" in that if you ordered a tank to move somewhere it could break down walls and such to get there, walls that soldiers could have used as cover while moving around etc.

Note though that the graphics was top down 2D, so it was "cheap" to replace a standing wall tile with a broken one.