Instead of having a flat amount of shield for every claim make the shield amount based off the type of outer wall.
Palisade- 75000
Brickwall- 150000
Then make shield regen 500 per hour, but regen by the minute. So 8.34 a minute.
Make max damage per hour 7500 to any shield. However, make it where after damaging a shield the shield will not regenerate for 1 hour. This does not stack. Can only be reapplied after the first hour is up. This is why regen of the shield must be based on the minute.
The reason for this change is to help make raiding more doable for the average player and fix the worth of a brickwall. The numbers above allow a palisade to be broken in 10-11 hours of straight raiding aswell as allowing a brickwall to be broken in 20-22 hours of straight raiding. However. it also allows someone who can only spend 4 hours a day to break a palisade in 3.75 days of raiding, a total of 15 hours spent raiding. For a brickwall it would take 7.5 days to break the wall. a total of 30 hours of raiding time.
You can of course scale these numbers to increase the time it takes depending on total elapse of the initial time of the raid and the end. Because it can be said 4 hours a day in a game for 4 days seems to be unfair for noobs who have spent much longer to get what they are about to lose.
Another thing I thought about to help people being seized is while that debuff to the shield is active (not allowing it to regen) the people on the claim that have permissions get a combat stat buff increase. This combat buff is only active while on the claim and not off of it. This would allow the defenders to compete with the attackers to some degree. It can be argued that people defending their home fight a lot harder than they normally would. Instead of being based only on their own stats it could also be based on the attackers stats.
and Idea for the stat boost is that it would consider all online characters on the claim. Divide them into two categories, ones with perms and ones without. It would take both groups and consider their combat stats in total (con, str, UA, MC, Agi). If the group without perms has stats that drastically dwarf the defenders the defenders would get double their own stats, this buff would decrease depending on their stat differences, if they are the same or less than the defenders their is no buff. This would be an active calculation so if someone left or logged it would adjust the value.