Depending on the game you are playing, here are the primary mods and sources:
Adds drop ships, new bug variants, and orbital invasion mechanics to Arma 3 missions. Squad (Multiplayer Shooter) skachat mod starship troopers
When searching for these mods on Russian-language sites, look for these key indicators to ensure you are on a reputable platform: Depending on the game you are playing, here
Sites like Skymods (catalogue.smods.ru) host numerous missions and re-balance mods specifically for the Russian-speaking community. Arma 3 (Tactical Shooter) new bug variants