I know this forum is located in America and many users are from there. And many people playing against or with USF faction are complaining about the usage of this commander especially in team modes.
From what I see there are two different complains:
1- its OP
2- Everybody have it, 4vs4 are USF Calliope spamfest.
Since I don't own the commander, I can't really agree or disagree with the OPness from a user perspective. But where I'm really surprised is the fact I don't really see this commander in usage. I can't remember the last time I played with a USF Tactical commander user in a random match.
I also know fora are a place for hyperbolic comments and apocalyptic descriptions so thinking about it, after reading this
response from Cooky the best first step to understand why so many people here are complaining about it and why I almost never see the commander im game is maybe linked to a regional usage. Like I said since many users are from America and I'm not, maybe there is are different usage of buying stuff (OP or not) between Europ and America, and especially USF stuff which is particularly linked to American people.
Because in my personal experience of European guy, majority of faction displayed when I'm playing 4vs4 are Brit, first in my clan people love it (but we aren't brit) and in random.
Let's say, on a 4vs4, the chance to have at least 2 brit player is particularly important compared to USF or Sov. And when there are USF players, I almost never see the tactical commander in their pool.