MEET THE STAFF

Click on any of the staff's pictures or names to contact them.

  • GARY PRESTON

    LEAD PASTOR & ELDER

    Gary has been the lead pastor at Frontline since May 2014. He and his wife Suzanne are from Colorado and have pastored two other international churches in Europe, one in Naples, Italy, and the other in Vienna, Austria. Gary loves helping people take their first step in becoming followers of Jesus and then growing as disciples of Christ. His greatest passion is to lead the church to become the hands and feet of Jesus to people in the church, the community and throughout the world. Gary and Suzanne have two grown sons, one an Air Force pilot, the other a family practice physician. Gary is a graduate of Westmont College and Denver Seminary. Adventure travel, cycling, music, hiking, family and good friends are some of their greatest joys in life.

  • MIKE WALK

    FRONTLINE CITY CHURCH PASTOR

    Mike has served as Assoicate Pastor since 2013. He grew up in suburban Chicago and has been married to his wife, Jenn, since 2005. They have three young children, Elliott, Carson, and Emmeline. In addition to being a U.S. ARMY veteran, Mike is a graduate of Moody Bible Institute (B.A.) and Liberty Theological Seminary (MDiv / ThM). His personal goal is to earn his Doctorate degree in the near future. Mike is the campus pastor of our satellite campus Frontline City Church in Kaiserslautern.  Mike enjoys reading, eating good food (especially pizza), and spending time with his family.

  • JOSH RAMSAY

    ASSOCIATE PASTOR

    Coming from Tennessee, Josh has been in full-time ministry since 2003, working first and foremost with youth and college age students. He and his wife, Teri, joined the Frontline team July 2015. They have two beautiful girls. Josh has a bachelors degree in Communications from Asbury University and Master of Divinity from Mid-America Baptist Theological Seminary. He and his wife love the Lord and introducing people to Him. Josh is also a fanatic Tennessee Volunteers fan.

  • CHRIS OPIELA

    PASTORAL RESIDENT

    Chris started at Frontline in July 2017. He and his wife Kelly met in grade school in Pennsylvania. They served together as missionaries for three years in East Asia prior to coming to Germany. Chris has a Master of Theology degree from Dallas Theological Seminary. They love books, making memories through travel, and talking about Jesus with people who’ve never heard of Him. They have one daughter, Eleanor.

  • RYAN OLESZEWSKI

    ELDER

    Ryan was born and raised in Baltimore, Maryland.  After graduating from the University of Maryland, he attended medical school at Temple University.  Currently, he practices hematology/oncology as an Army physician.  Ryan and his wife, Ashley, have known each other since infancy.  Their moms were best friends in high school, and they even have baby pictures together.  Happily married for 12 years, Ryan and Ashley have 2 boys, Lucas (5) and Carter (1).  Ryan and his family began attending Frontline shortly after moving to Germany in 2014 and have been actively involved in a Lifegroup and various ministries throughout the church.  In his spare time, Ryan enjoys traveling and eating his way throughout Europe (he is a self-proclaimed foodie who loves to try to duplicate recipes at home).  Although the Army has taken him to locations around the globe, Ryan has remained devoted to his favorite Maryland sports teams.  He loves for anyone to join him in cheering on the Ravens or Terps on a fall weekend.  

  • ITA UDOAKA

    ELDER

    Ita is our newest Elder. He was born in Sacramento California, but grew up in Lagos,  Nigeria. He met his wife LaShea at North Carolina A&T University where they both graduated with degrees in Chemical Engineering. Ita serves in the US Air Force and LaShea is a math teacher at Ramstein High School. They found Frontline in 2009 after accidentally joining a life group. They have been actively involved ever since serving in the Men's and Women's ministries. Ita enjoys mentoring, discovering Biblical truths through storytelling, and fitness. Ita and LaShea have two wonderful sons, Solomon and Samuel.



  • MARK CIERO

    ELDER

    Mark serves in First Impressions, FBCKids, and as Elder. Mark started as a newsboy in Bloomsburg, Pennsylvania. He graduated from the AF Academy and from MIT as an engineer. While in school, he married his first love and better-half, Elaine. Shortly afterwards, Mark found a second love, fighter aircraft. Mark completed F-15E training in 1996. He often points at his watch and tells war stories, which some are exaggerated. Mark loves Jesus, Parables, and teaching. They were blessed with two boys: Benjamin--star athlete, playing Division III football and Jonathan--academic, percussionist, and bowler. Elaine works full-time for the Ramstein Schools as a Registrar and serves all over Frontline. They enjoy running and, at least Mark, history. Food - lots, especially ice cream; Travel - sunny and warm; Movie - Fletch; Pants - khaki; Drinks - coke zero; Smiles - always.

  • TERESA GUIONNAUD

    LEAD PASTOR'S ADMINISTRATIVE ASSISTANT

    OFFICE MANAGER

    Teresa is our Office Administrator/Manager. She has been married for 30+ yrs to her husband Rene’, and has 5 lovely daughters. She’s passionate about traveling and taking the perfect family photo at all destinations, loving her daughters, and spoiling their grandson.  Teresa has been involved in Missionettes, Children's Ministries, teaching Women's Bible Studies and participating in prayer groups. In her spare time, Teresa also enjoys cake decorating, sewing, quilting, crocheting, and being an Irish Dance Mom.

  • KEIAFFA LEVI

    Administrative Assistant for Associate pastor

    Keiaffa serves as the administrative assistant for Frontline Community church and our City Church Campus. Keiaffa is originally from Iowa where she met her husband Thomas. Keiaffa has been involved with ministries like Youth for Christ and Fellowship of Christian Athletes. She and her husband Thomas are big sports fans and enjoy watching Iowa Hawkeye football. They are raising two beautiful children. Keiaffa enjoys the outdoors, reading, crafting, and traveling. 

  • JEFF FLETCHER

    FINANCE BOOKKEEPER

    Jeff and his wife Stacy arrived in Germany in 2013 from Omaha, Nebraska. He majored in Business Economics and Religious Studies from UC Santa Barbara. He received his MBA from Arizona State University. Jeff joined the Frontline Staff in May of 2016. He enjoys spending time with his family, homeschooling his 3 children and playing guitar.

  • RACHEL ROBERTS

    CHILDREN'S MINISTRY DIRECTOR

    Rachel Roberts joined the FC Kids Team in July as the Assistant Children's Ministry Director, and now has taken the position of Children's Director in February. Rachel came to us from the great state of Oklahoma where she grew up loving Jesus and Sooner Football. Rachel is passionate about sharing the love of God with children and teaching them that living for God is a blast! She started serving in children's ministry as a youth group leader after graduation from high school and has been serving in some area of children's ministry ever since. She and her husband Charles, also a native Okie, have been married for 12 years and have 5 amazing kids. Rachel loves traveling and exploring new places and cuisines as well as cooking, reading and sewing. 

  • SUSAN CHAMBERLAIN

    WOMEN'S MINISTRY DIRECTOR

    Susan is excited to serve as Women’s Ministry Director.  She is originally from Pennsylvania where she met and married her high school sweet heart, Scott.  They have been married over 20 years and have two beautiful young children.   Scott is an Army veterinarian and Susan’s best friend.  Susan earned a Bachelor’s in Elementary Education from West Chester University of Pennsylvania and a Master’s in Library Science from North Carolina Central University.  She worked 8 ½ years as a teacher and school librarian.  Susan has a love for learning; teaching; exercising; traveling; eating and Christmas markets!