When ur going to the swamp then just bring something expendable and ur army. Something expendable would be like a dodo.Use it as an alarm 🚨 and set ur dinos to aggressive and watch the snakes get obliterated
To collect eggs, build a 2 room pen (Dino gates work great as walls and dividers). Agro a bunch of TBs and lead them to one side of the pen then trap them in. Lead them back and forth between the sides as they drop eggs.