Hi, if you could summarize what you want the commands to do and the game I'd be more than happy to help you out and adjust my bid to what suits :)
Relevant Skills and Experience
I have experience with developing Java based applications, Minecraft game servers etc. I'm also familiar with DayZ (ArmA 2) customization as well.
Proposed Milestones
€100 EUR - Design and Planning, we've created a plan of attack on how the extra commands will be developed
€200 EUR - Deliver first 5 commands so you may test the functionality.
€200 EUR - Deliver the next 10 commands, you test functionality and we resolve any bugs found in the first 5
€166 EUR - Fix any final bugs and consider project delivered