Zathras wrote:
juraigamer wrote:Well, the night scythe can gain skyfire, where as the annihilation barge cannot..
Due to the Tesla rule, I'd actually prefer not having Skyfire for the A-Barge. Needing a 6 to hit with the Tesla Destructor is actually a good thing with Twin Linking as you get a second chance to roll those dice that miss and get those 6's, turning each hit into 3. In my experience with the A-Barge, it's a rare occurance when I don't roll at least one 6 when I fire it, either on the initial shot or the re-rolled misses.
I alway run 3 A-Barges when I can. They're great for anti-personnel, anti-light armor and anti-flier work. And the price, 90 points, is stupid good for what you get.
Actually, even with Tesla, not having Skyfire generates fewer hits on an annihilation barge against fliers. When looking solely at the 'to hit' rate, the Night Scythe, statistically speaking, generates 6 hits at S7 on average against an enemy flier, whereas the Annihilation Barge generates 3.667 hits at S7 and 1.833 hits at S6. The math used to generate these results is as follows
Total number of hits = Total Number of Shots * (chance to roll a non-telsa hit + chance to roll a non-tesla hit after a reroll + 3*(chance to roll a tesla hit + the chance to roll a tesla hit after the reroll).
For the Night Scythe, we get Total Hits = 4*( 3/6 + (2/6 * 3/6) + 3*(1/6 + (2/6 * 1/6)) = 6
For the Annihilation Barge, we get Total Hits at S7 = 4*(0 + 0 + 3*(1/6 + (5/6 * 1/6)) = 3.667
and Total Hits at S6 = 2*(0 + 0 + 3*(1/6 + (5/6 + 1/6)) = 1.833
So basically, even though you have a greater chance of rolling more 6's with the Annihilation Barge when shooting at fliers (although it isn't much more likely, the
NS produces 1.11 6 per turn at S7, and the
AB produces 1.22 at S7 and 0.61 at S6), on average the additional Tesla hits are outweighed by the additional non-tesla hits.
However, when analyzing the damage caused on the current existing flyer armor types, the Night Scythe strips 4
HP on average from an AV10 fliers (with 3 of those from penetrating hits), 3
HP from an AV11 flier (with 2 from penetrating hits) and 2
HP from an
AV 12 flier (with 1 from penetrating hits). The
AB however, strips 3.36
HP from
AV 10 (with 2.44 penetrating hits), 2.44
HP from AV11 (with 1.53 penetrating hits) and 1.53
HP from AV12 (with 0.611 penetrating hits), all before any potential saves (jink or invulnerable). So both are good choices against
DE, Ork, or codex fliers, the Night Scythe is a touch better against AV11 and AV12 (reliably junking AV11 in a single turns shooting and causing significant damage to AV12, whereas the Barge will require something else to finish off either flier).
So basically, while your statement about not having Skyfire is being a good thing is false, since the additional 6's do not make up for the lost regular hits, both models are decent as
AA units, although the Night Scythe is more reliable. Basically, the preference between Night Scythes and Barges comes down to personal opinion. The barge is better against ground targets and is on the table from turn 1, and has AV13 until it gets penetrated, but a Night Scythe is harder to hit, is slightly better at Air Superiority, is faster, does not require an
FOC, and can carry troops. Personally, I advocate taking Barges unless you were planning on running other fliers anyways, Necron fliers work the best when you bring at least 3 of them.