Groups are a lot more fun to play in. If you have a group, especially a big one, you look more intimidating and people have to respect you for that. Also, in big groups you are given more options as to how you may roleplay and how each character is himself. Solo can be fun but when you meet a big group it's like you're a bambi and you can either be their new test subject or, if they're nice, they may allow you to live or even join in on their group. But, however, Groups are still the best and is why I am constantly trying to get my friends to apply and get on DayZRP.