You guys are funny, 80 seige tanks?! Definatly money mappers... but anyways, never, I repeat NEVER, get seige tanks in front of your bunkers then place tanks behind your bunkers. You become extremely suceptable to just about anything. If playing another Terran, the have the range advantage against you with their tanks, as long as they arn't a newb. All they have to do is simply mode up with a good deal of distance between your depots and BOOM! then when they take out the line of depots, they start on your bunkers (concidering they have already done splatter damage to them). Then, when blowing away your bunkers, they deal splatter to your tanks, and meanwhile, your tanks STILL CAN'T TOUCH THEM! So basicaly, your screwed unless you know what your doing. Another nice little way to own that defence would be to range lurker your patheic excuse for defense. Now if your decent, hopefully you'd have irridate, but concidering this is a money map, they probally have 12-18 lurkers up your ass, making this almost useless unless he is a total newb and clumped up his lurkers. Yet another way you can get screwed is if a smart Protoss sees your doing that shit with a scout and simp,y rushes for goons with range upgrade (This will be before you have tanks up, concidering they are good enough to know this strategy). Now not only will these goons own your depots with the range upgrade, but they can also out-range your bunkers! Double screwed! Now please don't come whining to me saying, "But they won't have anti-air when they attack you!" I've got one thing to say to you: shut up! Either it will be earlier then you get wraiths or it will be late enough for them to bring devourers or just plain old hydralisks. My solution: Use the oldest quote in the book,"A good offence is a good defence." Don't depend on a bunch of buildings to bail you out, simply use units!Now I'm ot discouraging the use of turrets, bunkers, or early blocking. Turrets are great for anti-air along side tanks and are even better for moding up cliffs on Lost Temple. Bunkers are good for setting up offensive "safe zones" and are even better for stopping early rushes. But please people, if you get anything out of this post, take with you the idea that offensive and defensive units are one in the same. I hope you will take this idea to the drawing board (Playing it out). I recomend putting tanks and turrets mixed in together in no order along with some M&M, and maybe a bunker or two. And finally, always have a science vessel for safe measure as they are great against both your fellow Terran, a Protoss, or a Zerg (Defense Matrix for your own tanks against their tanks, EMP against Protoss, and irridate against Zerg). Enjoy!