Be happy to!
We broke off from the PC(USA) back in 1973 over perceived liberalism. One of the specific reasons was that our founders felt that the PC(USA) did not place enough emphasis on missions and evangelism.
We started with 260 congregations with a combined communicant membership of over 41,000 Christians. Today we have 1278 churches, and the last number I saw 400,000 members. In 2004 we baptized 2,505 adults and 5,400 infants. (So from an Evangelist perspective a bit more than 5% adult Baptism rate) We do not Baptize new members, only those without a Triune Baptism.
Mission to the World heads our efforts in other countries and has church plants as follows:
Five African Countries
Twelve Asian Countries
Nineteen European Countries
Eight Latin American Countries
We also have long and short term missionaries in 50 countries.
Mission to North American (MNA) heads up our domestic church plants and mission work on our continent. It might interest you to know that our Chaplain Ministries falls under MNA.
A recent example based on my experience: My home church in San Antonio was founded in 2002 and particularized (PCA talk for becoming self-supporting, self-governing) in 2004. Before we particularized we had mission trips to Peru and Belize as well as committing support to missionaries in Mexico and Belize. We also started multiple out reach projects into the barrios of San Antonio. We placed supporting missionaries and performing mission trips on equal footing to getting our church up and running.
It sounds like an exciting group to be a part of. I wouldn't (couldn't) criticize them at all. A few of my good friends when I was stationed in B-K went to the Presby church in K-town. We had a great time doing theology on our breaks.
Drive on. Fulfill your mission.