@nicae
Civ2 had something similar.
If a unit attacked with
less than one "movement point remaining", it would NOT get it's full attack value.
But that wasn't implemented Civ3.
As for units attacking all at once, that could be possible.
According the the press-release, you can group units so they move as one. I would "assume" that if you moved the grouped units against an enemy, they would attack one at a time (one-on-one) so when a unit is defeated, the next one starts attacking automatically. It's the same anyway if you moved units one at a time, like in Civ3, except instead of the next unit in the stack attacking automatically, you had to manually initiate the attack. If I'm correct in my assumption, I'd guess those who didn't get to attack in the stack, they'd get a chance to move on their own and have an option of either leaving the stack or staying.
If I've just confused you all, I'll illustrate with an example
Legend:
U# is your unit
E# is the enemy unit
... where # is the unit number
W denotes Wins
L denotes Loses
Say you have 4 units in a stack, all moving as a group.
You encounter an enemy stack of 2 units (grouped or ungrouped; does not matter)
You initiate combat.
U1 vs E1 (U1 W, E1 L ... battle continues)
U2 vs E2 (U2 L, E2 W ... battle continues)
U3 vs E2 (U3 W, E2 L ... battle ends)
U4 can now either opt to stay with the group or venture out on its own.
Now if you didn't want everyone in the unit to attack those 2 enemy units, you would probably move units out of the group first before you started attacking.
Using the same 4 units (grouped) and 2 enemies
U1 leaves the group
U2 leaves the group
Now, you only have Unit3 and Unit4 grouped. They start attacking.
U3 vs E1 (U3 W, E1 L ... battle continues)
U4 vs E2 (U4 L, E2 W ... battle ends)
Now, since the last enemy survived, the 2 units that left the group can either attack the surviving enemy unit or do something else.
Just keep in mind that this is just an
assumption I have made, based on current information I have acquired.
-Pacifist-
"Success is not measured by what you accomplish, but by the opposition you have encountered, and the courage with which you have maintained the struggle against overwhelming odds" -O.S.M.