How do you unlock trophies in rockstar games?

The only verified source supplied discusses the 2003 stealth game Manhunt, including its plot, release dates, and reception. It does not mention trophies, achievements, or any related gameplay features. Consequently, there is no evidence in the provided material that explains how to unlock trophies in Rockstar games. To answer this question accurately, additional reliable sources covering Rockstar's trophy or achievement systems would be required.