the church can call a holy crusade against the " unholy vile" alien invasion. what this means:-

the guild will mobilize two cargo transports to each of the players home world. players must fill the transports with troops. if they do not, troops will volunteer.

the imperial army must also give troops.the imperial navy must serve as escort. whoever controls the ministries (whether or not they have appointed themselves as emperor) must appoint a leader player of this crusade, this can not be himself, but must be another house.

the church will decide on the crusades destination, an infected world. the church will bless the mission (extra moral).

the leader will control all the missions unites, and this without knowing who's units is who's. the leader must send a noble or captain to lead the crusade.

in the event of victory (destruction of all alien units on target world), surviving units will gain a max experience (otherwise unreachable) of "holy paladin" status. this status not only adds bonus stats to the unit, but further installs respect (fear) into their opponents. basically super super elite. these unites will return to their respective home worlds and go back to their respective player's control. the unit who led the expedition will gain an extra voting right (knighthood), if he is a noble; or, if the unit is a captain, the captain will be ennobled.