Every weapon of Zarya Cosmodrome: the M15 Mod 0, the DS20 Mirage and the XR-3 Ion on the walls with their prices, the whole Mystery Box by class and season, and its three wonder weapons, the Ray Gun, the Ray Gun Mark II and the Necrofluid Gauntlet.
The walls of Zarya Cosmodrome sell three weapons, all at Uncommon rarity, the same three as at this place in Ashes of the Damned. Only the place of the DS20 Mirage is given by the sources: Support Systems, on the sub-level, behind the doors. A weapon bought on the wall is raised to a better rarity at the Arsenal, with Salvage, and upgraded at the Pack-a-Punch.
Weapon
Rarity
Price
Place
M15 Mod 0
Uncommon
1,550
Not given by any source
DS20 Mirage
Uncommon
1,650
Support Systems, on the sub-level
XR-3 Ion
Uncommon
1,750
Not given by any source
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Mystery Box
The Mystery Box stands on the ground level, in the First Room: the record of soggy_beef3 uses it from round 4 with every door closed. Power is not needed to use it. Its contents, as listed by the wiki:
Several weapons joined the Box with the seasons of the game: the Sturmwolf 45 and the Hawker HX in Season 2, the EGRT-17, the SG-12, the REV-46 and the GDL Havoc in Season 2 Reloaded, the Voyak KT-3 and the Swordfish A1 in Season 3, the MK35 ISR, the VST, the Strider 300 and the 1911 in Season 3 Reloaded, the Siren in Season 4, the VX Compact, the CBRS-3, the KRS-7.62 and the Grimhawk in Season 4 Reloaded, the AN-94 in Season 5, the FG42, the Gremlin and the Mammoth in Season 5 Reloaded, and the TR51 Para, the VMP and the Roc 20mm with the update of October 15, 2026.
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Wonder weapons
Ray Gun
The classic wonder weapon, from the Mystery Box.
Ray Gun Mark II
From the Mystery Box as well.
Necrofluid Gauntlet
The wonder weapon of Ashes of the Damned. There it takes a side quest, part of which happens at this cosmodrome; in Survival it is in the Mystery Box from the start.