Pirates are currently in Angola, where they will face Segrada Esperanca in their first round first leg tie this afternoon (16h00).
The Buccaneers last week wrapped up their domestic program for the year, and had extended preparation time for their continental opener.
Despite this, Zinnbauer has described how they have battled to get thorough analysis done on their opponents, who have not been active in their local league as yet.
"Esperanca have a good team, a strong team. They play very well defensively and are very good with some good players in their offence," said Zinnbauer.
"We don't have 100 percent information about what they do now in the last days, maybe they've signed new players.
"It's not easy to get information about this club, they have no league [games] at the moment, they have a small tournament that they do for all clubs in the country.
"But we don't have all the information of which players they play or what they do, so we have to fight and we need full concentration for this game."