Hello fellow Scarface enthusiasts, this is my first post here, I have a few strats/improvement:

Some weapons can be accessed early in the game: saw, ak47 and mac10, the saw from the chopper that follows you during the mission Gaspar Gomez, you can exit the truck during the mission after the chopper explodes or after the mission ends during the drive to little havana. Saw is useful in general, but it is critical for the oakley drive mission. ak and mac can be obtained from the driver, by calling a car as the diver, putting them in the trunk, switching back to Tony and picking them from the trunk.

During little havana distro, the best route is to go straight to oakley through the destructible wall between the storage and oakly, cabana and then pedro's, this is a shorter drive with more money.

In downtown storage, it is ideal to have a full balls meter at the roof, this way you can activate rage mode and jump down immediately, and shoot during the fall down animation, this way the enemies don't run far and are easily killed spawning the chopper faster.

After unlocking the islands, small suppliers can be avoided by going to the islands, this way a large supplier of at least 50K will spawn, but there are no way of rerolling which one you get (to my knowledge).

During the mission deliver, you can head straight to little havana after reaching downtown storage, there is no check to see if you head towards industrial park.

During peninsula lounge, the boat chase cut scene forces an ak on you, you can drop your asault rifle before chasing the boat to get it back, also a gunboat can be called.

you can level up your rep level in venus bar, this can skip a trip to your house before nacho mission.