Oxidation's Airdrop Event Settings - This plugins allows you to fine tune the settings about the Airdrop event such as frequency, speed.
About Oxidation's Airdrop Event Settings
This plugins allows you to fine tune the settings about the Airdrop event such as frequency, speed, cargo drop mass and speed.
To control the frequency, you can define a max and min duration between each airdrop event.
If you don't want any randomization, just set the max and min with the same value.