One of the Guild Challenges for the Mercenary's Guild in Assassin's Creed: Brotherhood states:
- 25 Guards killed while on horseback
Does this mean I need to kill 25 guards while I am on a horse, or kill 25 guards while they are on a horse?
I tried testing both but the counter seemed to increment way less than the number of each type that I killed, so I'm not sure if I'm missing some special requirement.
Best Answer
According to the Assassin's Creed Wiki,
and this walkthrough,
it appears that Ezio is allowed to be on foot, and must kill 25 guards who spawn on horseback.