This mod chagnes teh gameplay, and the nanosuit to something different. Instead of the nanosuit, you can now select 3 different suits, each offers a different type of gameplay.
Here is an video with the Protosuit MK1 in action against most enemies.
Remember that the Fraps kills performance, there are shuttering and sound off-sync problems on certain parts of the video.
Also, my specs are listed below as usual
GigaByte Geforce 560 Ti
Intel i5 Processor
4GB Ram
Windows 7 64Bit