Crusader is a great field and provides a lot of variety depending on if you are looking for speedball or recreation.
Temple University team drills on the speedball field but there are also tons of people that come in for recreational play. The management is great there and are always trying to help improve the experience for the customer.
Your best best for getting in touch with them or other crusader players would probably be to like their Facebook page if you haven't already.
If you have any other questions about the field feel free to PM me.