This is my first time working with spike. Also, first time working a with bipedal model. Anyways I hope you like it =). There will be two files. One with keyframe and the final one. So, if want to use the keyframe in any other way XD. Gif clip a little bit. I forgot the mention the model breaks a little in armpit area, I'll do my best to hide it somehow.
You must use [SFM/DL] SFM-IK Spike or the animation will not work.