Vietnam: Ho Chi Minh Trail

You are separated from your main group of special forces soldiers, but you are not alone. However, you are surrounded. With your trusty radio, and a full arsenal of weapons including a Vulcan cannon, a mortar, your M-16 (with sniper scope), and RPG launcher, you will hold back wave after wave of Vietnamese forces intending to overrun your tiny position. However, it will not be easy, as they will enjoy the help of MiG-21's and even the occasional bombers, as well as plenty of RPGs and lots of human wave attacks. You, on the other hand, can call upon the firepower of howitzer batteries and even some friendly napalm drops, and when available a chopper that drops additional ammo for your fight. How long can you survive?

Vietnam:HCMT is basically an updated version of Beachhead, albeit set in Vietnam. It is best described as "stationary first-person shooter", where you stay still and rotate 360 degrees, engaging enemies from all sides, switching weapons as needed, and hopefully don't run out before the attack is over. The game is divided into separate "missions" with different enemies and time of day.