One issue with the guard fight is that since the last couple of updates, the orc-guard fight hasn't ended before the orc boat shows up. Even then, something seems odd as the guards fighting the already-there orc seem to fight in real-time until the already-there orc is dead, and after that they seem to get enough AP to walk back and start to engage the orcs again.
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I like the new tunnel quite a bit. It's nice to look at, and it's got an interesting mix of combat and traps.
But the changes to Northwest Cyseal are fantastic. The statues now have a proper arena, it's a grand plaza now, quite a spectacular sight. I also like how the entire area has been opened up with multiple paths, so you can engage the thugs and Dietmar from angles of your choosing.