The two teams will battle for qualification to the next stage of the tournament at the Nnamdi Azikiwe Stadium on Wednesday.
Rivers United romped to a 4-0 victory over Timber-loaders in their previous Cup outing and Festus is upbeat that their hunger to secure a ticket for next season's Caf Confederation Cup will lead them to triumph over the Promise Keepers.
"We are looking forward to this game and we are determined to ensure that we progress to the next round," Festus told Goal.
"We know it will be a 50-50 game but we want to qualify for the continent after about three years absence. We are motivated to win this game and advance to the next round."
The last time Rivers United won the Federation Cup was in 2007.