Originally Posted by Xenolith666
There's a video for practically every achievement.. can't get much more detailed than that.
For Lock and Load, I do mention you keep all points.
I'll update the efficiency ribbon guides.
Great guide and thank you for not adding the text one of the 2nd or 3rd posters listed.. Looking at a guide, I hate having obvious points listed and to waste time reading them. ie make sure you zoom in with the sniper rifle. etc.