To the OP:
Can you articulate why you think a wml is necessary for a SWAT Officer but not for a regular Patrol Officer? It seems to me that it is either needed or it's not. I would be interested in your thinking.
Obviously much on a duty belt is required by the agency. Much of that requirement is due to lowest common denominator. The more years I had on the more stuff I took off my belt and put in a go bag for the just in case stuff.
Gun
Two spare mags (I would have went with one while changing the OEM spring every year, but two spares were required.)
TDI knife behind mags.
Taser (required for everyone)
Radio.
Old scorpion backup flashlight. Yeah I'm that old. Would have an even smaller light on my belt if in patrol today.
What I ditched to the preplanned calls or go bag:
rifle mag
asp(actually switched to a 36 inch riot baton that sat with my riot stuff)
larger flashlight
spare pistol mag.
second cuffs
ditched permanently: more problems than they solved.
pepper spray. Love the stuff in civilian life. But hate it for LEO. Having to go hands on during and after really sucks.
ear bud
radio mike
I'm sure I'm forgetting some small stuff.