[2] Montepeque made his top division debut for Coban Imperial when he was 23 years old, but he immediately scored a winning extra-time goal which won the club a historic first (and only) league title.
He then moved to Comunicaciones where his playing time has, so far, been limited due to the presence of the Costa Rican striker Rolando Fonseca and the Guatemalan national team player Dwight Pezzarossi.
On 1 October 2011 Montepeque scored the fastest goal since the Apertura and Clausura tournament format was introduced in 1999.
[4] Tránsito has a younger cousin named Jean Carlos Montepeque who also plays for Comunicaciones as a defender.
Montepeque made his debut for Guatemala in a July 2004 friendly match against El Salvador and has, as of January 2010, earned a total of 19 caps, scoring 5 goals.