Offensive hawk missions allow you to use your hawk forces against another warband. In addition to the ability to take land and food by force, hawk missions also allow you to harass an opponent by destroying buildings and killing regular troops besides a number of other actions.
Since the success or failure of an attack made with hawks is based on ratios, it is possible for a small warband to successfully attack far up the ranks against a much larger warband, in some cases even if the target has a greater number of hawks.
Shielding (from the mission "Raise Defenses") is a major factor in hawk missions. It doesn't affect success or failure of an offensive mission, but reduces the damage caused, or spoils gained, by a factor of one-third. For example, if you murder someone who has a hawk shield up, you will only kill 1% of their troops, rather than 3%. If you try to rob an enemy's granaries, you will only get 3.3% - 5% of his or her food, rather than 10% - 15%, etc.
Missions are still effective against somebody who has a hawk shield, but it takes more missions to do the same amount of damage.
Your offensive ratio is defined by the following equation:
2 * YourHawks / (YourLand + EnemyLand)
1.05 * EnemyHawks / EnemyLand
Cost in Runes
The cost in runes of any given mission increases as your networth goes up. The current cost is displayed next to the mission name in the drop-down box.
Display of Missions
You will notice that under certain conditions the dialog in which you select the mission to execute shows some missions in yellow. This indicates that you do not have enough runes to perform the mission.
||Returns strategic information on your enemy's warband, identical to his or her Main Menu display.
||Destroys 3% of your enemy's military units.
||Destroys 9.12% of your enemy's food and 12.65% of his or her cash.
||Destroys 3% of your enemy's runes.
||Destroys 3% of each of your enemy's structures, as long as he or she has at least 15 acres of that structure.
||Pits your hawks against your enemy's in battle.
If successful, you gain 7% of his or her occupied land, 10% of his or her undeveloped land, lose 9% of your Hawks, and destroy 6% of your enemy's hawks.
If unsuccessful, you suffer a 10% loss and your enemy suffers a 5% loss in hawks.
||Steals 10% - 15% of your enemy's cash and gives it to you.
||Steals 10% - 15% of your enemy's food and gives it to you.