There has been at least one person here that denies Walter Martin held a faith alone theology. Here are the facts:

Our Beliefs --Christian Research Ins***ute---http://www.equip.org/about/our-beliefs/

6) Jesus’ death on the cross provided a penal subs***utionary atonement for the sins of humanity. In salvation we are rescued from God’s wrath by His unmerited grace alone, through faith alone, on account of Christ alone.

Again, Alan--Walter Martin preached a faith alone theology--which states one is saved by God's grace--through a faith without works. IOW--dead faith saves, in the faith alone theology:

James 2:26---King James Version (KJV)
26 For as the body without the spirit is dead, so faith without works is dead also.