Change my trackpad out.

I can't seem to find any instructions on changing out my trackpad. MacBook Pro 15" Retina Display Mid 2015, A1398. After the battery is removed I have a cover over the trackpad area and it looks like there might be a torx type screw near the bottom before the plate can be removed. Does this need to come out and if so what torx size it. I have looked at a lot of trackpad replacements but none look like my cover with one screw. Any help would be appreciated.

Don