In Warhammer Chronicles 2004. View online.

He moves like a single model on foot - freely, like a character on foot (and thanks his lucky stars he's still around!).

The rule that models on a 25 mm x 50 mm base are classed as cavalry has thrown up some points regarding beasts such as Chaos Hounds and Dire Wolves, and creatures like Bull Centaurs. To clarify this: All models on a 25 mm x 50 mm base have a Unit Strength of 2. Models on a 25 mm x 50 mm base which consist of a rider on a steed with a single Wound are classed as cavalry and follow all of the rules as such. Models on a 25 mm x 50 mm base which do not consist of a separate rider and steed are classed as cavalry with the following exceptions: They do not gain a +1 Armour save. They use the weapon rules as if they were foot models (so may use two hand weapons, or may gain a +1 Armour save for using both a hand weapon and shield, for example).

Unless specified, separate units are always deployed separately (exceptions include war machines - not Gyrocopters and chariots - and Empire detachments).

Characters may form a unit with each other, only if they are on foot or a cavalry mount. Characters mounted on larger creatures and chariots may not form units at all. Remember also that characters on a flying monster may not join a flying unit, as described in the rules for flyers. This is also true of non-character monsters and creatures, such as Giants, Spawn of Chaos and so on (no other units can join them).

No. I know that Flying Unit is an actual sub-category of flyers but I would think the intent is obvious. To nail it on the head, I would say that a character on a flying monster cannot join a unit of flyers or another flying monster.

Yes (excluding flying monsters). I always like the idea of a Goblin Big Boss and his forty feet tall 'minder'.

No. You cannot form a unit from two Giants, for example, or three Chaos Spawn.