Lol, this happened to me in 2v2. Or more precisely my team mate. Luckily it took them a while to spam said grunts and we both had already expanded. Two arbiters fully pop'd. They were recruits so we got over zealous in that match and decided to not scout right at the start and make it more of a challenge for ourselves. After that we scouted. Jackals with beam rife wipe out the grunt army. Needless to say we walked all over them in a few minutes. Wasn't much of a match after their entire force...killed themselves.

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