The final episode sees a huge shift in gameplay, in fact it was almost a different game. Even the final boss in Half-Life echoed many of the design qualities of the Tomb Raider 2 boss in terms of the way everything fits together. Half-Life even features a vehicle of sorts in the shape of trains, although the term 'train' is perhaps a little deceptive since these are more like a platform with a control box at one end . They're actually good fun, although seemed to play very little importance in the section of maps they were present in. I found myself completing most of the train areas on foot, and only went back to get the train at the end once I realized I needed it to finish the section.
Unauthorized reproduction is a majorly hostile gesture.