Thunderbrd
C2C War Dog
I like that, yes. But I'll counterpropose with some additional consideration. Aggressive, to me, seems to be a leader who would train his troops, or inspire his troops, better towards attack than defense.
So I say Combat I + Aggressive I (which also unlocks a 3 step Aggressive chain perhaps).
Aggressive I: +15% Attack Strength, -10% Defense Strength.
This means units under Aggressive leaders would be much stronger at attacking (combined, these free promos would mean out the gate a +25% stronger unit at attacking and no benefit for defending.)
The synergy between this and a Barbaric leader under my proposal would be pretty potent despite Barbaric being mostly negative. They'd have a Savage army capable of extreme power when attacking but terrible at defense. (at least at base.)
1) We'll put every trait under the microscope here so we'll get to consider those as they come up I think. With Aggressive, since its the first under close evalution, we're establishing a basic 'power quotient' against which all other promos will be judged but also trying to get it up to snuff with what we all 'sense' is the basic value of the other traits as they generally are and have been.
2) I can agree that Agressive is slightly underpowered in comparison to say, -25% EXP needed to Promote from Charismatic and multiple decent promos from Protective and Nomadic (however those promos don't have such prerequisite unlocking power as Combat I (currently).) So yeah, this is probably a good idea to give them a second, slightly weakly powered Promo that cannot be gained any other way.
3) Since we should be evaluating traits on two levels, both ALL POSITIVE and MOSTLY POSITIVE, I think we need to keep the workup on them clearly separated and ensure that the trait is balanced either way, thus its easier to first consider just the ALL POSITIVE layout. Without any negative, I see no reason to then go beyond and establish any GG emergence benefit.
4) Then, with a slightly negative in play, we can have some GG % bonus (25% I think would be good from what you were suggesting before to push that number up a touch).
Crime penalty on Aggressive kinda makes sense but kinda doesn't. You have a leader who may have a more disgruntled public (due to being rather aggressive with neighbors so often) but also a bit more afraid of their strong leader's unyielding penalties for breaking his laws. Therefore I think the two effects would balance out to no net crime bonus or penalty. However, since we're waiting for me to get the War Weariness tag worked up, I can understand the penalty should come from somewhere so I suppose a small crime penalty like 1 crime / 2 population might be acceptable to me to balance against +25% GG emergence bonus.
So to sum up what we have so far:
Aggressive (Vanilla BtS):
- Free Combat I for Melee and Gunpowder Units
- Production bonuses for Military buildings (Barracks and Drydocks)
Aggressive (Current):
- +25% Civic Upkeep
- +15% GG Emergence
- Free Combat I for Melee, Gunpowder, Hi-Tech, and Assault Mech Units
- Production bonuses for Military buildings
- +10 crime in City if Crime > 200
Aggressive (ls612 changed to):
- +15% GG Emergence
- Free Combat I and Combat II for Melee, Gunpowder, Hi-Tech, and Assault Mech Units
- Production bonuses for Military buildings
And now we have the following models on the table (a game option would allow for choice between the two):
Aggressive (All Positive):
- Free Combat I AND Aggressive I (+15% Attack, -10% Defense) for Melee, Gunpowder, Hi-Tech, and Assault Mech Units
- I'm suggesting we change the above to: all Combatant units (requires defining all Combat intended units with the 'Combatant' sub-combat class (as opposed to Civilian))
- Same Production bonuses as current
Aggressive (Mostly Positive)):
- +25% GG Emergence
- +1 crime / 2 population OR +25% War Weariness incurred during war
- Free Combat I AND Aggressive I (+15% Attack, -10% Defense) for Melee, Gunpowder, Hi-Tech, and Assault Mech Units
- I'm suggesting we change the above to: all Combatant units (requires defining all Combat intended units with the 'Combatant' sub-combat class (as opposed to Civilian))
- Same Production bonuses as current
There's still some points to discuss mentioned here. Otherwise, is this looking good for everyone?
).
for priest specialist for anti-clerical for example). Another couple of examples: iAttitudeModifier - which will be a negative for aggressive instead of the crime for instance. iImprovementUpgradeRateModifier which can be used as a negative for certain trait or even positive for traits such as agricultural or cruel. 
