I have been playing with this mod running along side Kiruka's 'Playable Aliens for LWOTC' with no issue up until Septembers 8ths update. After which point I noticed some issues with the Playable viper class, not the Viper soldier added by this mod.

First is that when I have a Viper try to shoot with the Viper Rifle, instead of the normal animation there is a 'point' animation that plays instead.

Second, the playable Viper Class could no longer use their tongue attacks such as 'Tongue pull' or 'Grab and Bind' stating there are "No available Targets". the 'Bind and Crush' the one that allows a viper to bind when adjacent to a target, works fine on Viper soldiers, but for the playable viper class it again says 'no target available'

Third the playable vipers class's poison spit ability seems to have been disabled after this update. I equipped the 'Viper Maw' item on a playable viper and that re-enabled the spit ability, but not the tongue abilities. and when trying to use poison spit the playable viper plays the Viper rifle firing animation with the plasma effects as well.

When I disabled this mod 'allies unknown: Vipers' the playable vipers went back to normal. normal rifle animations, tongue abilities became functional again and they could spit poison.

I would really like both mods to play nicely so wanted to bring this to your attention.