So now that the 4th of July event has finished (fireworks woo!), all Tenno have been tasked with the destruction of the Informer.
Kill 20+ Drones & receive a
Don’t stop at 20—the top 100 players will receive a
PRIMED CHAMBER MOD
First shot in new clip gives +25% bonus damage per fusion level.
Part of a clan? The top clans from 4 pre-determined tiers will receive a
GRINEER DRONE STATUE
for their dojo -- awarded after Update 9
The spy drones are cloaked but will reveal themselves when you're within their range but need to be killed in one shot. This is likely to be the last chance to get a Snipetron since it was removed from the game as of update 8 (due to lore reasons).
For full details head of to the Warframe site.