[quote=“blazing glory, post:5171, topic:42”]What’s the strongest vehicle armor in the game?
Probably Military Composite but I like to be sure.[/quote]
Military has 3250 durability
Hard has 2300
Steel 1000
Spiked 900
Superalloy 900
Wooden 300
Probably some sort of an instinct. Aquatic zombies (only swimmers?) can stumble into water.
And if you mean mechanics: it is simply explicitly forbidden for non-breathing non-aquatic or non-swimming monsters from choosing swimmable tiles as stumble destination if they aren’t in swimmable tiles themselves.
Interestingly (possibly an unintended behavior) this means zombies and robots can’t stumble into water even when stunned, while breathing creatures (animals, triffids) can.