Completing all 100 tags unlocks a massive "Starter Pack" at the Johnson House (Grove Street): Weapon Spawns:
If you are looking for a "review" of the 100 Tags side quest Grand Theft Auto: San Andreas 100 tags gta san andreas
Need a visual guide? Search for "GTA San Andreas 100 Tags Interactive Map" online—many fan sites still maintain high-resolution maps for both the original and Definitive Editions. Completing all 100 tags unlocks a massive "Starter