I would thus say you can't contribute to multiple CFs with 1 unit
I would agree.
I've been giving a lot of thought to the Tau
ML situation. It's no secret that 6 drones isn't exactly the most durable solution, even with
JSJ. With that in mind, it may be worth your while to rearrange things a bit. Specifically, if you roll out 3 units of pathfinders, you gain a whole lot of durability and a few
ML hits, thanks to combined fire. Yes, it's 52 more points than your current arrangement, but given how important
ML are for knight and GMC eradication (when a Stormsurge is around, that is), that's probably well worth it. Pathfinders also benefit from being able to add some token firepower if you happen to not need marker support. Instead of the drones, commander, and crisis suits as you have them, consider this:
Buffmander - 135
3x4 Pathfinders - 132
Crisis suit - 2 ABFP - 52
Switch the ABFP for fusion or plasma or whatever you feel you need. The list seems to lack a bit of horde control, so while the ABFP would be my choice, it's tough to go wrong with any of them.