I felt the need to do this because, despite all the fuss and glamour of the Riders, the majority of scenarios in War in Rohan feature footsloogers. Even those with Riders will need Warriors as dismounts.
I've done 16 to bring my total up to the 24 needed for the first scenario. This meant painting four more archers. Unfortunately, these are exactly the same as the four I've already done as there's not much you can do to individualise them.
This is not the case with the seven spearmen I needed as I've been able to swap weapons around to ensure no two of them are exactly the same. This is added to by mixing the shields up between those models that are similar.
With the five armed with hand weapons I raided a couple of unused Riders, and this has led me to having a slightly higher number of axes in the force. Given that the Warriors are only Strength 3, a bit more 'piercing strike' might help against tougher targets.
Normally, painting 16 models would be a source of celebration for my painting tally. However, I bought these as part of a lot of 20 off ebay (the others will be done primarily as dismounts). In addition, I've also bought 24 Uruk-Hai Scouts and 5 Warg Riders with birthday money...and there's more on the way.
I looks like batch painting is back in my life if I'm going to keep my head above water.