The Ravagers is a fairy standard WW2 Resistance themed war film, only made memorable when compared to its competition by its low production quality. Almost all shots in the film are very dark and blurred - being more consistent with films made in the 1930s & early 40s, than the mid-1960s. There are elements of the first half of the film that are near unwatchable because they are so poorly lit - for no apparent reason. Luckily the final battle is significantly better lit so the viewer can actually see what is happening. This is a shame because most of the locations look visually interesting (from what I can tell by squinting). As this is the only Philippine film from the period I have watched I cannot comment whether this reflects the quality of other Philippine films or whether The Ravagers is just very poorly made. The film is redeemed slightly by most of the actors putting in fairy good performances, but again this is let down for the English-speaking viewer by the bad and inconsistent dub - which does not even translate all dialogue in the film.
The film feels like a missed opportunity to explore the Japanese occupation of the Philippines - which was a very interesting time in the country's history.
Most of the vehicles and military equipment is also incorrect to the period being portrayed. This is made more surprising when it is considered the amount of Japanese equipment left-over in the Philippines after their occupation was defeated. This makes it very puzzling why almost all of the Japanese soldiers' equipment in the film is incorrect - except for the odd cap, helmet and water canteen.
Overall, a thoroughly forgettable film only notable for its surprisingly poor production quality.