Vietnam was a truly hellish experience for all concerned, and Hell Let Loose: Vietnam, from Expression Games, has absolutely nailed that. I don't even mean for that to come off as backhanded. The game's firefights are intense, often unfair, sometimes heroic, and occasionally funny. Following on from the success of the original game's medley of WW2's Eastern and Western Front greatest hits, Vietnam is a mixture of what works in that game and a complete abandonment of peer-conflict battlefields. On one side, you have the USA, a military superpower, on the other, the North Vietnamese Army, who are, on paper, vastly outmatched. Just as in real life, however, the NVA have a host of tricks up their sleeves to level the playing field.
The most notable trick at the NVA's disposal is the ability to create tunnels that stretch across the map, linking tunnels and garrisons. While only four of these can be connected at any one time, they create an incredible sense of asymmetric warfare. Enter a tunnel, select where you want to exit, and you'll cut to a first-person cutscene of your (hopefully) claustrophilic soldier crawling to their destination. This is explicitly designed as a counter to the US-exclusive helicopters that are also capable of whisking soldiers across the map, albeit more slowly, and while vulnerable to RPGs and anti-aircraft fire.
