Missions beyond 20 are randomized, except for the 8 milestone missions 30, 40, …, 100. Therefore, below are screenshots for missions 1 to 20, plus the 8 milestone missions, with links to the corresponding video captures and misison-specific strategy guides where available.
Each of the “randomized” missions feature a battlefield randomly picked from an earlier mission, which may be a milestone mission. Interestingly though, a few milestone missions, such as mission 20, are never picked. Furthermore, also randomized is the mix of enemy tank types and their initial placements. However, one thing is never randomized – the number of enemy tanks in each mission is pre-determined and never changes.