Trees, hills, nooks and crannies are what makes helos fun, and L2 has none of that. It must be in advanced mode, however, otherwise the bird just doesn't maneuver properly and you get smoked by your enemies. NovalLogic has always been very proud of their VoxelSpace engine they invented, but to be honest, it has always sucked. For a DOS game, it's great - for a flight sim, it's terrible. Clever, but they should have just gone for the Voodoo chipset and done it right the first time by going 3D. Voxelspace is great to the cheapos out there who are trying to play games on cheap machines, but developers of flight sims are shooting themselves in the foot to limit the graphics of their games just so they can woo the cheapos out there into buying their games.
Sound is top notch.
Nothing short of outstanding. The voices are totally realistic and obviously done by those who are familiar with helo ops. There's even helo jockey humor, terminology, and attitude. Sound is a total highlight of this game. Gameplay has been immersive and involving, occasionally requiring you to send your wingman ahead to take the initial blast of defense.