In the film Collateral, what prompts Max to impersonate Vincent and communicate with Felix?

In the film "Collateral", Max's decision to impersonate Vincent and communicate with Felix is prompted by the destruction of Vincent's briefcase and specifications. This pivotal moment emphasizes the high-stakes nature of the situation Max finds himself in. By taking such drastic action, Max attempts to assume control over a chaotic scenario and gain the upper hand against Vincent's deadly threats. The briefcase contains critical information that associates Max with Vincent, and destroying it effectively allows him to sever that connection. In this moment of desperation, Max's actions stem from the need to navigate the dangerous world he is trapped in, showcasing his resourcefulness and desire to protect himself.