Improvisation
Tycondrius was invited to the strategy meeting.
As for why, he would have liked to believe it was because he had introduced himself as a Tactician. It was a rare class and apparently, was the only one in the Brazen Guard collective. Further, he had provided solid strategy in the first meeting. Tacticians were most valuable during the planning phases prior to large-scale engagements.
More realistically... he was invited because Bannok and Aria favored him.
He arrived to the command tent earlier than most everyone else, not wishing to suffer the company of Tancred's Stormbrands. A purple-haired elf sat silently in the corner. A minuscule twitch of his pointed ear was the only sign that Tycon was noticed.
⟬ Felinus, Gold-Rank Elven Hunter. Guild Brazen Guard. ⟭
As light as Tycon's steps were, he had no doubt that Felinus sensed him. That the elf had no particular reaction meant they were not overly offended by his presence.