You can have hydraulic 'lifters' with any cam configuration, the are just a device for automatically taking up the slack in the valve drive train. This can be on a direct acting cam or on the end of a pushrod or rocker. As for the Crossfire - from the manual:

"Lightweight hydraulic adjusters in the rocker arms at the valves take up valve clearance for quiet operation. For minimum weight and maximum rigidity the compact rocker arms are pressure-cast aluminum. They pivot through roller bearings on rocker shafts bolted to the heads. Using computer-aided measurement and calculation techniques, valve dynamics are equivalent to that achieved by direct valve actuation through in-line tappets, but with far less friction."