Krusty the only right tactic against the WW is the one that satisfies your criteria for success. If success means taking zero risk in being hit by it, then yes, abstention is the right tactic.
If killing it like the one-trick pony it is, is 'success', then all you need to do is tag-team it, and/or fly an unpredictable path. Any burst of bullets on target will kill the turret, any very accurate 250lb will kill it, and anything equal to or bigger than 500lbs is easy enough for anyone who practiced just a dozen dive-bombing runs to kill or disable the WW.
Like someone said, if you have film of someone hitting you from 2.5-3K, that's another issue, as the 'stock' WW reaches only to 1.7.
" Sometimes, like what happened a couple weeks ago, you get WWs escorting panzers and tigers that camp ON your RUNWAYS (ignoring the town) in a totally disruptive mission."
I don't see what the problem is, here. Sounds like a successful use of tactics by them.