The incremental 1.52 patch for PS:A. Changes are all bug fixes.
Pacific Storm: Allies - 1.52 Patch Changelog
Fixed performance issues on the strategic level of the game;
Fixed CTDs during switching game modes;
Fixed errors in save files on tactical level of the game (AA guns problem);
Fixed CTDs in game's configuration on some combination of hardware and video drivers;
Fixed CTDs when loading non-binary save files;
Fixed CTDs after loss of formation of certain type in the strategic level of the game;
Fixed CTDs with returning large number of aircraft to the strategic level of the game;
Fixed CTDs when you select a building to attack in auto-battle.