Originally Posted by beyond
No. Fischer, Head, Kastle, and Elan roll with Tyrolia bindings and plates. That said, you might check the hole patterns. No issue about drilling new holes on a plate if they don't come too close to existing.
I'm going to disagree with Beyond on the Fischer WC Sl plate. I own a pair (older) and they came with a attached riser plate that is totally flat and can accept a traditional flat mount binding. The plate is made by Head/Tyrolia, but, I don't know it's manufacturer name or number. @Philpug mounted a different pair of skis for me last year and put Tyrolia/Head freeflex binding onto the same style plate. To be clear, it's different from the plate Head puts on most skis sold with Freeeflex bindings.
If the OP can post a picture of the plate, it would clear up any confusion. I've no experience with Marker comp bindings or the piston plate.