I see that they're guaranteed 5 (out of 100) senate seats, which by my math is definitely not 10-30%. I doubt most normal folks will vote for them, especially in the countryside where people have been the most affected by the conflict.
Yes, those responsible for war crimes - on all sides - (police, soliders, paramilitary, as well as the rebels) have the opportunity to confess before a tribunal and avoid jail time. It will be up to judges, but they will receive up to 8 years of restricted movement and community service (whatever that may be.) This is definitely the most controversial part of the agreement, as 95% of the country feels these folks are crooks and should be punished.
I could go on - I'm an American and have lived in Colombia for about 6 years now, and see an entire country that has been held back due to this stupid war - the agreement isn't perfect, but this needs to be put to bed, so the country can move forward. After having just seen the whole "brexit" fiasco, I'm a little worried about how this is being put to a referendum and seeing so much disinformation being spread. Even on an English speaking tech news site.