Gothic 1 RTS mod (SC: BW).
The appearance of the heavy mercenary will probablly change, as he has a less representative, less common facial variant here. He will probablly become and upgrade of the medium mercenary, with the same face, as medium/heavy mercenaries are very similar in Gothic 1.
There are many tutorials and guides on how to make a proper melee map.
Not many emphasize the importance of neutral buildings and units regarding melee gameplay balance. However, we've seen in many ladder maps that many of the game's neutral features are either rarely used or not at all.