Elites
4 Chosen with Plasmaguns and champion with combi-plasma and chainsword (95 pts) – Alpha Legion
Well first off without even double-checking any of your other points I can tell you that this number is WAY off. Fully plasma kitted Chosen should be running you 147 points, not 95.
Also you claim you are going to put them outside of 12" of targets but still in rapid fire range. That is not possible. Unless you are talking about after your first turn movement, then fine, however...
You admit you will almost never get first turn, and your opponents will get to move (at least once, maybe more with Warptime to get within 12"), shoot, and charge at you before you get to do a thing. I certainly think the Alpha Legion strat is a powerful one, but I am of the mind that it gives its biggest benefit when putting blobs of dangerous melee units (berzerkers, for example) close to enemy targets you want to either pulp or simply tie up so they can't shoot. For essentially the same price as your 5 man plasma squad, 10 berzerkers make enemy units not want to move much closer to them or engage them (they fight twice remember), and when your turn rolls around they can simply shrug off their losses (which they will undoubtedly suffer some,
ofc) and do what they came to do, charge the enemy. Either way they are doing the job of screening for your firing line of Lascannons and whatnot while being able to soak up a little more damage due to almost certainly not going first.
Just something to think about if you don't happen to get first turn or magically roll a 6. Otherwise I think your backline is very tight, brings a lot of firepower with high
AP and
dmg potential. Allows you to focus down a threat or two per turn. The cultists are as good as you get in
CSM for cheap troops to fill out battalions, but I feel like being
AL you would want to shift a few points to at least have one super blobby (30 or so) cultist unit to use the Tide of Traitors strat on in a pinch. But that's just fluffy fun that also happens to work out strategically sometimes.