Defensive Aluminum Rocket Vessel

Defensive Aluminum Rocket Vessel, also known as DARV is a space tech. DARV rockets are used to protect space techs. They're expensive to research (500.000.000 GC) and require Aluminum and a VATROS. It's rival is OARV. When it detects an OARV flying towards the space tech DARV is defending, the DARV flies towards OARV and crashes. DARVs can be built and converted to OARVs for 500.000 GC. It's (and OARV's) upgraded form is ARV.