Ilya Konovalov created
It's 1-to-1 relation. Your ship has a "warp drive strength" of 1 by default (blocade runners have +2 bonus to a 3 total). Each warp disruptor activated on your ship reduces your "warp drive strength" by it's own strength (1 for disruptor, 2 for scrambler, IIRC some officer scramblers have strength 3, focused warp disruptor from Heavy Interdictor has strength of 99). If your "warp drive strength" goes to 0 or less you can't warp. This gives: 1 WCS will save you from a single warp disruptor, 2 WCSs will save you from either two warp disruptors (activated by one other ship or two different ships) or a single warp scrambler, etc.