The Bees take on Yeovil at Wembley just over three weeks after they agonisingly missed out on automatic promotion on the final day of the season.
Brentford were a last-minute spot-kick from going up, only for Marcello Trotta to hit the crossbar and Doncaster to break clear and score at the other end to clinch the League One title.
They then came through a nerve-shredding penalty shoot-out against Swindon in the semi-finals and are now in sight of the finish line once again.
"We've had some massive highs and some massive lows and we've got a great occasion on Sunday - but it will only be a great occasion if we win," said 28-year-old Craig.
"It's been an unbelievable season and not just in our league.
"It seems to be the way that we don't do anything simple but we've worked very hard as a team.
"We seem to play with no fear, we've got a game plan to get through most games and hopefully that will take us through. We have to do the job in hand and the reward is Championship football."