How do I get 5 haystack kills?

There aren't very many haystacks in the level where templars have patrol routes that go by them. I count 4 total, 3 near patrol routes.

• When you first enter the town (only 1 templar patrols by)
• After you reach the market where there's a lot of civilians (only 1 templar patrols by)
• In the corner to your right after you reach the stronghold and you are locked in (only 1 templar patrols by)
• In front of the tower behind the stationed guards (none patrols by)

You need to lure some to the haystacks in order to get the required kills.

An easy way to do it would be to go to the first one, get the one that is on patrol first. With him out of the way, go in to High Profile in front of the stationed guards (far away but close enough for them to notice you) until they are in the yellow. They'll start walking toward you. Make your way to the haystack and get ready for the kill (you may need to wait for them so they see you going toward the haystack). Repeat as needed.

It's possible to do it in the other haystacks as well but most won't be as easy as the first.