Resident Evil 4 How to use the remastered Chicago typewriter?

Resident Evil 4 remastered Chicago typewriter is used to obtain S+ evaluation, and the usage method is as follows:

1. In order to get the hardcore S+ evaluation in Resident Evil 4RE, you must complete a new game (not a new game+) within 5 hours and 30 minutes of the total game time. The only thing that determines the level is the game time, so the number of enemies defeated, the frequency of saving people or the number of deaths are not important. S+ evaluation can't be realized in the new game+,and the new game must be started from scratch.

2. The easiest way is to unlock the Chicago typewriter by evaluating the pro difficulty above A, and then upgrade the Chicago typewriter to unlock the infinite ammunition. This will make the game easier with little trouble. But I still suggest buying two rocket launchers to beat Ramon Salazar and Saddler quickly.