In stephlocke/Rtraining: Training Materials on R

if (!require(devtools)) install.packages("devtools")
if (!require(curl)) install.packages("curl")
if (!require(random)) install.packages("random")
if(!require(tfsR)) devtools::install_github("stephlocke/tfsR", build_vignettes = TRUE)
library(devtools)
library(tfsR)
#setInternet2(use = TRUE)
x <- tempfile(fileext = "Rmd")
on.exit(unlink(x))
download.file("https://raw.githubusercontent.com/stephlocke/tfsR/master/vignettes/WorkingwithTFSandGit.Rmd", x, method="curl",extra = "-k")

TFS

In TFS2013 and Visual Studio Online, you can use git repositories inside TFS. This gives the ability to leverage all the advantages of a distributed source control system whilst still giving you all the functionality of TFS.

If you're using SourceSafe or earlier editions of TFS, UPGRADE for everyone's sakes.

If you're not using any source control, consider getting Visual Studio Online as it's free for 5 users (plus unlimited MSDN users), requires no hosting or maintenance on your part, and has fine grained permissions management.