if you know you have a neighbor or suspect, such as 3v3 or 4v4 games; choose offensive or defensive first off. if ur going defense, rep a rax with ur 1 3 and 4 peon, and build to prevent towering of peons, i usually build a gt for this purpose; yes i usually build a rax and mill when im in neighbor wars. never underestimate what 4 or 5 peons can do in the early game; though if the enemy suspects a peon rush 4 or 5 peons will probaly just become 4 or 5 dead peons. by the time your 5th peon is built u will have either finished ur rax or mill. send all of these peons to destroy enemies towers and peons, and asap send that first grunt from your repped rax. good players will have a much easier time defending. if your good at neighbor grunt rushing, which i seem to suck at (i lost my last 5 12/2 grunt rush wars) go ahead and do that, since you'll be more useful to the rest of your team if you have a grunt troop running around after killing your neighbors peons.
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fuck you