Fair enough, but still, changing the mantis icon to that of a tank is a bit extreme. If its that big of a problem, wouldnt it be better to just change icon of the mantis to a slightly different one? Or the LABs icon.
As for pillars and strikers, i never get them confused either, but if they use the same icon then its a real possibility, specially considering how similar both look. But it never was a real problem, so i dont understand why the mantis icon being the same as a LAB is. If LABs were widely used alongside tanks then id understand, but theyre not. At most you have one or two mixed in with a scout and a tank for raiding. They lose their utility very quickly.