The Ruins
I made the ruins thinking that I would like it to be the central contested point where all the players would fight for. There would be a capture point inside the stable, one on top of the ruins and one at the tomb. By thinking that way, I made sure the ruins could give advantage to the player with a high ground that could be accessed by three different routes. (See the image below)
The two staircase and the bridge would be the most contested point because of the positions of the spawns. One team would spawn on the right side (Tomb) and on the left side (Village). The top of the ruins gives an advantage not only because of the high ground, but because once the team has it, it is really hard to recapture because of the lack of cover.
This is where the swamp shines. It gives off a high ground to get rid of the players staying on top of the ruins and gives a good peek over the bridge to see if there's any players incoming.
The village
If your enemies are too strong, there is always a way to comeback and this is where village comes in. The idea to flank crossed your mind ? The village gives the players plenty of opportunities to shoot from and stand their ground. If your enemies are not careful or too busy fighting for another capture point, you can always take village and reposition to comeback strong.
The stable can also give a good high ground to keep any players from trying to reach the point from both angles. This high ground could also give the opportunity to the players to retake the village from a flanking standing point.
