What is this? Does it mean the AI automatically slides in sometimes?
Do you use it or not and what are the effects?
I think there's three settings.
you can have full auto which means your AI teammates will slide tackle often, and in reality way too often, which is what the CPU AI is set at I believe, slide tackling all the time non stop at every opportunity.
semi auto which means, your AI teammates will slide tackle, when the CPU thinks it's appropriate or worth the risk (which in reality is basically nil). But it will be more conservative with the amount of slides.
And off....which your teammates won't do it at all.