Chaos Bahamut Attacks (バハムートカオス襲来 [bahamut chaos ryuu rai] in Japanese) was the second half of the FF13-2 event in Final Fantasy Airborne Brigade. Aside from having the event-exclusive weapons from its pre-event Incursion from Valhalla available, it also had abilities, additional weapons, and miscellaneous other things.
This event was the first to include a special event region with it.
The event ran from December 26th 2012 to January 14th 2013. On January 6th additional content became available.

Overview
In addition to the things listed below, each player would get a daily log-in bonus of various types of fragments (listed below under Transmutation), 10 of one random color.
The special event region in this event was the Otherworld (FFXIII). See area details on its own page. Red Chocobos, which gave event-specific abilities, were only available in that region.
Chaos Bahamut
In the Otherworld you could occasionally come across a Dimensional Rift that would let your brigade fight against Chaos Bahamut. It dropped CP, as well as pink, blue and purple fragments (see below in Transmutation for further details).
CP Exchange
CP could be exchanged for various chests that could give you event-specific weapons, or scrolls to level your weapons and abilities.
Platinum Chest - rank R+ or higher weapon (2,500 CP / 500 CP for first purchase)
Gold Chest - 1 weapon of any rank (1,000 CP / 200 CP for first purchase)
Silver Chest - R/R+ weapons and scrolls (100 CP / 50 CP for first purchase)
Weapon Scroll III (1,500 CP / 250 CP for first purchase)
Ability Scroll III (1,500 CP / 250 CP for first purchase)
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Flame Fossil | Romulus & Remus | Howling Soul | Sargatanas |
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Starseeker | Sagittarius | Meteor Shooter | Seraphic Wing |
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Indrajit | Arcus Chronica | Fragarach | Odin's Spear |
Transmutation
This event was the first one to introduce Transmutation - raising a weapon or ability's rank, for example from R+ to SR. As usual, this applied only to event-specific weapons and abilities. The items used for this event's transmutation were fragments, listed below.
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Pink Fragment | Blue Fragment | Purple Fragment |
Weapons | Abilities | Weapons |
R to R+ - 10 Fragments
R+ to SR - 200 Fragments
SR to SR+ - 100 Fragments
Red Chocobo
This event is the first one where Red Chocobos appeared. These gave you both regular and event-specific abilities. The event-specific abilities are listed below.
1st Half | ||
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Pain | Pain II | Area Sweep |
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Ultima Arrow | Ruin | Ruinga |
2nd Half | ||
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Wound | Woundga | Launch |
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Army of One | Armor Breaker | Meteor Javelin |
Event Ranking
At the end of the event, all players were ranked by how much total CP they gained during the event. Each player was given rewards appropriate for their event rank.
Unfortunately, we weren't able to recover actual event rankings. Below are ranking-specific rewards that were available. In addition, it was possible to receive all types of Fragments and some types of scrolls.
Weapons | ||
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Caius's Sword | Mog's Clock | |
Legend Summons | ||
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Noel I | Caius I | |
Backgrounds | ||
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Valhalla |
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