I don't know if this is a bug, a design change, or just my own misunderstanding but after doing many caravan ambush quests in boht 1.5.1 beta and now 1.5.2 beta I see only recruits sent with the caravan master. In the older versions I remember it being more developed troops and that fits with the dialogue of the quest, that you're tricking the bandits with armed soldiers. I don't really mind but it is a bit silly when recruits are in fact much weaker then a normal caravan squad would be.
Another minor concern I have is that the quest always deploys a batch of bandits of the lowest tier of that regions bandits. The amount seems to scale but it's always the lowest tier (hillmen, steppe bandit ect...), this is okay but the bushwhacker (t2 forest bandit) is actually much much harder then any of the other bandits that show up. It's okay I suppose, but a player can reasonably solo 30+ of any other basic bandit type or with a low level party easily. But 30 or more bushwhackers will shred you even with heavy armor! It's not impossible but it's very challenging compared to the other spawns.
Another minor concern I have is that the quest always deploys a batch of bandits of the lowest tier of that regions bandits. The amount seems to scale but it's always the lowest tier (hillmen, steppe bandit ect...), this is okay but the bushwhacker (t2 forest bandit) is actually much much harder then any of the other bandits that show up. It's okay I suppose, but a player can reasonably solo 30+ of any other basic bandit type or with a low level party easily. But 30 or more bushwhackers will shred you even with heavy armor! It's not impossible but it's very challenging compared to the other spawns.