Targets without Cover or Flanked targets may be attacked once per turn without expending an action.
Double Tap (Colonel)
A Sniper who chooses not to move at the beginning of their turn may make two attacks, including Headshots and Disabling Attacks. Double Tap has a one-turn cooldown. --- Do you really wanna live in a world without Coca-Cola?
I'd say it depends on how you're using your sniper. If it's a squad sight one then Double Tap is best just because ideally you'll hardly be moving them around.
If you're going with a more recon sniper with snap shot then in the zone might be better, not sure haven't tried that one out yet, I like squad sight too much. Guess I'll level someone up and try it. --- You can kill me, but then I'll be dead. Aww, it's soo cute, just makes you want to club it.
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.
Heres the end result of In The Zone combined with Heavy/Assault/Grenades:
Heavy/Grenades = Explosives to remove all cover Assault = Flush to force aliens to move out of cover
Afterwards the Sniper just chain kills everything with near 100% accuracy. --- Actually, since Wedge Antilles > Carriers, and Carriers = Instant win, then it should be Wedge Antilles > Instant win. He's just that good XD -PsionicDude