I only experienced the regular trains I suppose. As a paladin, I spent a lot of time in Unrest. The trains there can be quite impressive (never more than a 20 mobs or so though), especially when they start in the Ghost Room and the player makes it to the zoneline lol.
I once wanted to help the person who got the train after him, I was in my 40's at that time (character already deleted :( and I foolishly believed that I could withstand a train with about 5 hags, abundant number of skeletons and several terrors.
Well, let's just say that the other player got away, I didn't.
The worst train I caused was the one in Mistmoore (before the revamp, about a year ago), I was hunting gargoyles for the item needed for the armour of Ro, I was spending time in the area just before the entrance of the castle, getting a bit of xp from all the mobs there and camping the three gargoyles in the back of the valley there.
And then I decided to see what's in that castle that was just above me, I finished clearing the valley and went upwards. Problem was that some high level cleared the castle (faction gain I believe it was for) but all mobs were just spawning as I entered a side room just next to the garden, so I ran. Mobs kept spawning as I passed them, but I got lucky and did manage (with loh) to reach the zoneline.
Being a curteous player, I called the train several times, but what I forgot to do was zone out immediately and not wait and see how big that train was (it was quite impressive, imo that is) so that train just kept coming.
A fellow player stood at the zoneline and cursed me for not zoning out instantly as that would have stopped the train and not lead them completely to the zoneline.
Mostly because the mobs in MM don't always immediately leave the zoneline, they stick around for a bit and if there are over 10 mobs there, hard to get back in that zone for some time.
Other than that, the usual trains in Dulak, the harbour getting my pallie spell from Chester (that train didn't get far as I couldn't get out of the invisible tunnel, got stuck and died), ...
All a load of fun, after some time has passed that is :)
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