I loved this game back when it came out. Like its predecessor, Project I.G.I., I.G.I. 2 has you infiltrate large, open areas with limited but advanced weaponry and gear in order to accomplish missions of sabotage with the occasional evasion thrown in. It still has some of the same flaws as the first game, such as the dumb AI (a common occurrence in this genre) and deadeye enemies, but its biggest flaw is the newly introduced time limit in some of the missions. Planning your stealthy infiltration just doesn't work well with time constraints. Apart from that, I found I.G.I. 2 to be a good tactical shooter with survival elements.
The first 2 Tomb Raider installments are really THE classics of the action-adventure genre. A near perfect combination of platforming, puzzles and combat, varied locations that could have been taken straight from an Indiana Jones film and one of the most popular video game characters of all time make these games must-haves for nearly every PC gamer.
If you are familiar with the Men of War series you'll feel right at home in this game. It's actually the first game in that series, the predecessor of Faces of War and eventually Men of War. The game is a combination of the small-scale squad tactics of Commandos and more conventional WWII real-time strategy games like Blitzkrieg. You are in control of (usually) only a small group of soldiers. Each soldier has his own inventory. Weapons and items can be carried, dropped and picked up. Guns use ammunition, vehicles require gas. There is a detailed physics engine and damage system. Buildings can crumble, guns can be destroyed, wheels blown off, etc. The game has 4 campaigns as well as a number of training missions and single missions. You play on the side of the Americans, the British, the Soviets and the Germans, using accurately modeled vehicles and equipment. Your missions usually involve some kind of sabotage or ambush and you are usually up against a much larger and more heavily armed force. Careful planning and stealth are a must here. Soldiers: Heroes of WWII can get extremely difficult, just like the later installments of the series, but it's also a very open-ended game that leaves you all the freedom you need to complete your objectives. Purchase this game if you like squad-based real-time tactics in a detailed WWII setting.