One of the long possibilities that Gang War Mod gives to us is to make this example of a street fight without guns, only using melee weapons. As shown here, we can recreate a classic Ballas vs. Families gang war, but in this case, only using knives.
The Gang War script, created by Kerosini, spawns peds from 2 teams, A and B, on a spawn point for each team, placed by the player on the map. Once both spawn points are created, the peds will start spawning, walking to the enemy spawnpoint, but once peds from both teams see each others, they'll start fighting. The player is on Team B, so the peds on team B will act as allies.