I will explain
The Hydra can no longer use their autocannons against ground forces with any real great effect. According to the rules now in 6th edition.......
The latest FAQ has given Hydra Autocannons the "Skyfire" special rule
pg 42 under Skyfire
Unless it also has the Interceptor special rule, it can only fire snap shots against other targets.
Other targets are defined as Non Flyers, Flying Monstrous Creatures, and Skimmers. So this means that fast moving bikes and jetbikes very much safe against the hydra who now has to use snap fire to hit them. This includes any other tank or other vehicle.
I hope they fix this, as I really do not think it was their intention that Hydra Flak Tanks are not able to really target units on the ground. If it was their intentions, then I suppose its on to figuring out how to use the Hydra differently in lists.
Assuming of course that the Hydras Autocannons are no longer any good at shooting at ground units, it still leaves you with some options....... You do after all have a heavy bolter in the hull, and you can always add a Heavy Stubber to the vehicle. At the very minimum I would of thought that Jetbikes would be included in the Hydras Autocannon target list.
