Complex sentence: Stowe P.14 Songsuradet instantly became the Party's tactician advising how it should first secure Bangkok militarily and that eventually the country will follow, he also advise the Promoters to be more secretive to avoid official and police detection.
Split into simpler sentences: Stowe P.14 Songsuradet instantly became the Party's tactician, advising that it should first secure Bangkok militarily and eventually the country will follow. He also advised the Promoters to be more secretive to avoid official and police detection.