[FT] Evasive Maneuvers

I'd recently been thinking about Evasion along a similar line as John
Crimmins. Ours is a gaming world of alternatives I thought of it as a reaction
movement rather than a planned movement, however:

Evasive maneuvers:
- Reaction to enemy fire.
- Can be ordered after a firing ship declares maneuvering ship as target
of weapons.
- A ship must leave half of its original thrust unused in movement
phase.
- Maneuvering ship turns one point port or starboard in place
- Engines take threshold check.
- Incoming beam/torp fire gets –1 mod to die rolls.
- Incoming missiles are reduced by 1d6/2 (round down). .
- If maneuvering ship’s weapons have not fired yet, its weapons receive
the same modifiers.
- Weapon modifier good only against the 1 ship that maneuvers are
reacting to.
- A ship with no allocated thrust may EM twice, second threshold roll
has +1 modifier.

This makes it something to be used really only to avoid a cripping blow, and
gives players a chance to react to fire in a defensive way, but with some
risk.