Other than the 2 x 4Bd for ‘vir militaris’ per legion, no more than ONE extra element of each listed type can follow a praetorian governor or legate to a new province. Up to two such elements can accompany a consul. The governor is free to pay these troops for a round if his next assignment is not a military governor, and if he goes to a legate status, he can bring them along to the consular province. While the player is in Rome, the troops are on his estates.
EXTRA ROMAN ARMIES – When two Roman armies are in the same province, or in adjoining Italian War sectors (the Eastern Italian War Sector only adjoins another Italian War Sector if one of the starting Italian War nations has been defeated), the Roman player fighting the battle may summon help. The available Roman force(s) can respond on a die roll of 4,5,6. The choice to respond lies with a PC general who is personally accompanying the force if he is equal or senior in rank to the Roman player who summoned him. NPC and junior ranked PCs always respond unless they are willing to accept a die roll for assassination by the senior centurions (see Event 49/50 Assassin)and prosecution if they survive. If controlled by a senior or equal rank PC the force is allied and dices separately; if controlled by a junior PC the force is subordinate and dices with the Roman player fighting the battle.
Extra enemies
Selection of the unit(s) goes to the player who will lead the army; he may
not select an extra general unless he has at least 7 extra units from one
source or another. The player representing the enemy of Rome may chose
any element on the nation’s list, with the restriction that the total
of elements in the oversize army may not exceed the total of those elements
between 2 lists unless the total extra elements exceeds 12. For example,
if the DBA army list includes 1x3Kn, then the Enemy of Rome may only take
one extra 3Kn unless he takes 13 or more extra elements, which then permits
a second extra 3Kn. Italian enemies, NPC-controlled Roman renegade armies
and similar use the Roman auxiliary troop lists instead- you cannot generate
extra Roman (3Cv, 4Bd, 4Sp) elements.
Multiple Armies from the Same List
When two armies are generated in the same province/sector from the same enemy
list as a result of events or a second aggression roll, they can join together
to form a single army on a die roll of 4,5,6. This is modified by the number
of enemy generals present in the larger of the two armies – if two
generals in the larger army, subtract 1 and if three or more generals subtract
2. Add one to this die roll if the army that is trying to join the battle
won a battle this round, and subtract one from this die roll if the army
lost a battle this round. The C-in-C is randomly selected from the available
generals of the same nationality. All other generals in the army become
subordinate. This new army becomes the basis for this nation’s behavior
in the campaign.
If the two armies do not join together, the unengaged army may contribute elements as discussed in Multiple Enemies, below. If the unengaged army contributes enough elements to qualify for a general, then that general is an ally on 1,2,3 and subordinate on a 4,5,6. These elements will rejoin their parent force after the battle, and if an ally, so do any extra elements bought for them.
Multiple enemies
If two or more enemies of Rome exist in the same province, they may make common
cause. Roll the aggression of the army that is not participating in the current
battle, and if the resulting roll is less than or equal to their aggression,
then they can contribute extra elements to the battle equal to 1d6 for each
pip of the difference between the die roll and their aggression plus one
(example: an enemy state has an aggression of 3. The aggression die roll
is 2. 3+1=4-2=2D6). The die roll is +1 if the enemy has suffered a defeat this
round and -1 if it won a victory.