WRONG - you can't read can you? Arc Week will also feature one of the most powerful Arc weapons ever created, the Thunderlord Exotic Machine Gun. [b]If you weren’t able to complete the quest to obtain Thunderlord last year, you will have from April 9 to April 23 to [u]revisit[/u] the Cosmodrome and add it your collection. [/b] at the time it was said that Cosmodrome would be closed for good, get it then or else.