Wintergrasp Veteran

Since they changed the Tol Barad achievement from 100 to 25. They need to change this one as well. Doesn't make sense to change the new battle zone and not the old instead.

I noticed today that despite winning lake wintergrasp I did not get credit for this achievement.

I joined late in the battle and probably did not manage to get any HKs before the battle finished, so that might be an extra requirement.

I finally finished Master of Wintergrasp a few days into Cataclysm, and Veteran was the only thing I needed after the Shattering.

With that in mind here are some thoughts for how you can achieve this in an era when WG will be underpopulated and may be dominated by twinked 80 alts who are there for the Honor or to make people QQ and not for victory per se. Because of underpopulation I assume you are solo unless otherwise mentioned.

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2. (Cheese) WG sometimes won't let anyone play, all players are teleported out. It's because no-one on the opposing faction signed up. If you are defending you can still score despite this. Find enemy NPCs and just before WG starts, apply a DoT that will kill them. When WG starts, you are teleported out but the NPC dies, you are therefore a participant and can win. Wait just under thirty minutes then re-enter (if you re-enter too soon note how long the match has left, wait a few seconds less than that) and you will win before the teleport happens. I won twice this way (out of my 100 needed victories). There might be simpler ways, but at 2.5 hours between WGs who has time to experiment?
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4. In general. Kill NPCs. With player enemies so few and scattered it will take too long to hunt and kill them. So don't race past NPCs as you would in 40v40 WG, stop and kill them. If the enemy are hiding, kill the four NPCs on Central bridge, they respawn, you rack up a lot of kills this way, and inquisitive opponents may come to see what's happening.
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6. Whether attacking or defending your first goal is a vehicle, preferably a siege engine now that they're faster. That means ~15 kills. Get them fast. If there are others on your side, somebody should be doing this, but not necessarily everyone.
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8. In an ideal world, you build your vehicle, destroy the objectives (three towers for defender, 2+ walls and the door for attackers) and win (after a few minutes wait for defender). With under-population it can really be that straight forward, the "enemy" may be looking for herbs, or clueless and represent no threat. But a bored level 85 arena team could show up at any time, plan to win before they do.
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10. Keep an eye on the number of enemy vehicles, and on the map. Particularly if you're defending. One siege that you can't find will be the difference between an easy defence and a defeat. With so few players there's no such thing as "just" one siege engine
11.