Yeah, both taxistrafing and puketwinking (is that what it is?) are ridiculous tactics; if you're gonna disable the b26 guns on ground, do it to all the A/C, or you'll see the same whines when the FTD comes out.
My guess is groundvehicles is going to change everything.
And, re: base defense, I've got two approaches:
A. Low profile: wait in tower until C47 (or any other low dot on the horizon) shows up, grab a spit IX with 4x.303s, 25% fuel, and bust it. If nobody is defending the field, you may have the "Cap" too high to spot you, or intervene in time. Plus the IX will allow you a nice UFO-turn onto the C47 six if you screw the HO. Finally, if you fail in your mission, that's what the .303s are for
B. High profile. It's looking a lot like a vulchfest. Follow the instructions above. Oh yeah, and anyone see that interview on dogfighter with the RCAF pilot who described a German ace taking off in a 109 from a field they were suppressing, getting above them all and waxing 5 of 'em?