Logistics Wizard - If a leader has this trait, the units under his command consume supplies and oil at a slower rate than normal.

Defensive Doctrine - Leaders with this trait get a bonus to their defence values. The Finnish field marshal Mannerheim would be the premier example of a leader of this type.

Offensive Doctrine - Leaders with this trait get a bonus to their attack values. Common among German generals (Manstein, Guderian, Rommel, etc). Other examples would be Patton and Zhukov.

Winter Specialist - Units may move and fight without penalty at winter. Uncommon, but would apply to certain Soviet, Finnish and Swedish generals.

Trickster / Camouflage Expert - The army under a trickster leader is invisible to enemy intelligence, gains a large bonus to air defence, and always gains the surprise bonus when attacking. Rommel would be the prime example.

Engineer - Moves and attacks across rivers without penalty.

Fortress Buster - Reduces the effectiveness of enemy fortifications.

Old Guard - Gains EXP at 1/2 rate

Panzer Leader / Blitz Specialist - Blitz attacks are more likely to succeed for this leader, even with the odds stacked against him. Also gains a significant bonus to movement speed. Typical of the German generals. Zhukov would also have this trait.

Commando - Mountaineers, paratroopers and marines under a leader with this skill get a large bonus to attack and defence.

Characteristics for Admirals

Sea wolf - Submarines under this commander are harder to detect and gain an attack bonus.

Blockade runner - Fleets under the command of a Blockade Runner admiral are much harder to detect, especially for submarines. Useful for convoys.

Superior Tactician - Leaders with this trait gain attack and defence bonuses in all sea battles.

Spotter - The fleet gains a large detection bonus, discovering enemy fleets more easily.

Characteristics for Air Marshals

Tank Buster / Tactical Bombing Ace - Bonus to attacking ground units

Superior Tactician - Bonuses to air-to-air values.

Spotter / Recon Ace - Detection bonus. Useful to discover enemy army and fleet movements and to gain a surprise bonus when attacking other aircraft.

Carpet Bomber - Strategic bombing bonus.

Night Flyer - Large bonuses when flying missions at night.

Fleet Destroyer - Bonus when attacking ships.