They are actually different. Sometimes you get the event immediately, when you explore the camp, sometimes you should try several times.So it seems I somehow missed Reave Keep, since it was supposed to be east of the portal and the village with the elder was also east of the portal, so I figured that was it and after I took it I went north, crossed the bridge and spent rest of the time trying to finish the orc camp quest, frustrated that I can't. Still don't know why the twins said I conquered it but was short on money, seems like a bug, because it was the other way around. I had over 500 coins, but I didn't conquer the keep.
As for Batri, I did a bunch of "raid for gifts for Delane" quests, I assume the raids you talk about are different? I explored the camp a bunch of times but never got option for raids, just few random events. I only ordered the axes from the forge like two weeks before I failed the game though so maybe that's why. Also for some reason after succesfully corrupting Delane I still get the option to corrupt her every time I visit the camp even though it's already done. The whole thing seems confusing to me, as we're never really given clear instructions on how to complete each of the 3 paths. I'm going for Batri, but I also completed all raid for gifts for Delane and can't convince her to marry the old orc chieftain either.
To get Ulcro as the winner you need more assistance from the Castle.
1) Is always to find Delane and then try to convince her to accept the old chieftant
2) Is necessary to get all the gifts for the raids for Delane. This would not be enough, of course
3) You need to talk with Cliohna, Cla-Min & Jezera to get more gifts for Delane. You will find the demoness at the throne room for this.
After you get the assistance from the ladies at the castle, Delane would be ready.