This one requires a medium amount of set-up time but can be pretty nice for harassing the opposing team.
Go up into the top floor of an alliance tower, jump on one of the weapon racks against the walls, use your mammoth mount (yes you can mount on the top floor of the alliance towers), jump up onto the roof. There are other posts on this forum detailing how to jump through walls/ceilings with the mammoth mount if you do not understand that part.
You are able to right click the flag while on the roof.
Unfortunately when I take a screenshot of my cursor on the flag with the 'golden cog' the actual cursor, of course, does not show up in the screenshot, as cursors never show up in screenshots, but you get the idea.
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