[Juzza]

I never use pillaging on computer players, only ever vs human opponents, with large sneaking armies, you appear in provinces next to their capital or major cities with somthing like a harvester of sorrows and a huge army and decimate their populations, then they can't move armies though there easierly, rec is reduced and income from the province is gone, and you make enough money from the pillaging to replace the army you just sent deep into enemy territory from whiping out 20000 people.