I think when people start experimenting more squad strategies, in the zone might actually be better than double tap.
3-4x Assault 1-2x Support 1x Sniper
Sniper with Snapshot, In the Zone and Opportunist makes them very mobile, attached with a scope for increased aim and with assaults flushing the enemy from cover constantly you can end up getting many kills or at least high % chance opportunities to clear out the enemy.
If you like being aggressive, this might be the pinnicle of "a good defense is a great offense" strategy.
In the Zone is beastly against chryssalids since they ignore cover. Last terror mission I played I dropped two chryssalids and two zombies in one turn with my ITZ sniper. Course two missions earlier I was wishing I had Double Tap, so there's that. Both are pretty amazing, at the end of the day, I think it'll depend on your playstyle as to which one works better for you.
You should never be in the company of anyone with whom you would not want to die.