The problem of earlier raids is to do with the time slots. Its very hard to rearrange a full day of battles just for 1 raid.
I'd love to see raids changed though to the following
1) Raids are always 10 mercs a-side (small and therefore good for small clans)
2) Raids only use half a players troops and equipment (the rest are covering your retreat) with a min of 50 raiders and a max of 200. So your army must be 100 to 400 men strong to raid. Any more of less than this range and raiding is prevented.
3) The raid ends when all raiders are dead.
4) After the raid the game calculates the ratio of
equipment value used by the defenders to
equipment value used by raiders.
5) The raider gains 1 crate of goods for every 4 covering troops, however this is then multiplied by the above ratio (with the max ratio being 2:1). Therefore a ratio of 1:1 = 1 crates per 4 covering troops. 2:1 = 2 crates per 4 covering troops. And 1:2 = 0.5 crates per 4 covering troops.
6) Fiefs must have enough S&D to cover these goods at a rate of 1 good = 2 S&D and the Fief will lose this S&D after the raid. This means raiding a fief with 400 S&D will gain you 200 goods at most.
7) After a raid, the raider gains 2 hours of immunity multiplied by the ratio in #4. So 0-4 hours of immunity based on how well the raid went
The above is pretty complicated (at least to explain) but what it means is
1) Fiefs with lots of S&D are great raiding targets
2) Raiders never gain so many goods they get slowed down
3) The better the raid goes the more goods you get and the longer your immunity lasts
4) The emphasis is on the raider to attack and kill defenders. If the raider doesn't attack they will auto lose at the end of the time limit. This means they lose troops and equip but gain no goods since they killed nobody.
5) Factions will have to defend the fiefs with equipment and troops but will know they won't lose this equipment to the raid. They will have to defend properly though as otherwise the raider will steal lots of goods by killing off a lot of peasants with no losses of their own.
6) The extra losses in S&D mean it is not an efficient way to farm goods for a faction with lands and it therefore shouldn't be exploitable....I hope