Some 30 kilometres separate the pair, who will meet in Wolfsburg on Thursday and at the Eintracht Stadion next Monday, but Gomez and his team-mates were on Monday headed further afield to the Dutch town of De Lutte on the Dutch-German border to fine-tune their preparations for the tie.
Wolfsburg looked to have secured their top-flight status only for Luca Waldschmidt to produce a late goal for hosts Hamburg on Saturday, and condemn Andries Jonkers' side to a fate which Gomez says they only have themselves to blame for.
"When we took things in hand more in the second half, we should have scored three or four goals. As a team we didn't do that," said the Germany international, who had seen team-mate Robin Knoche put their side ahead before HSV replied to secure a 2-1 win. "Now we have got what we deserved, and must go into the play-off."
Braunschweig, who signed off their Bundesliga 2 campaign with a 2-1 win over Karlsruhe, will have good memories of their last Bundesliga encounters with Wolfsburg.
In the 2013/14 campaign, they picked up their first win of the season with a 2-0 triumph at the Volkswagen Arena before drawing the return fixture 1-1.
Braunschweig were relegated after finishing bottom of the table that season, but an identical pair of scorelines would take them back into the top flight and end Wolfsburg's 20-year stay among the elite.
"I'm a little bit speechless because football is brutal. But we're not relegated yet. We still have two matches against a second division side. We have to do it," said Gomez. "We won't be relegated to Bundesliga 2.