At the start, there was a Catholic mass, but it was in a Protestant church with a large cross in the background and not a crucifix as would be in a Catholic Church.
Sweet and Parker make severe tactical police errors at the alarm call. First, neither radioed they had arrived. Next, after Parker is fired upon by an automatic weapon, he challenges the gun thug by announcing "police" rather than using cover to fire upon the gun thug. Sweet makes this same error when he confronts the same gun thug and is shot due to his incompetence. What they should have done, since there was no one else in the warehouse, once it was learned there was at least one automatic weapon in play was to secure the perimeter and wait for additional units. Police need not verbally challenge a suspect that is firing a weapon or in possession of a weapon in a position from which it could be fired.