Gustav was born in Miroslavl, his parents were upperclass citizens. His dad was a well known Surgeon in the Military hospital and his mother was a pediatrician. From a young age Gustav was passionate about biology and medicine. He often tried to read his dad's anatomy and medicine books and tried to absorb as much knowledge as possible. After finishing his middle school education he took a shot at the doctors exam but failed. After a year of studying and working as a paper pusher in the hospital where his father worked he tried another time but failed again. He decided to join the CDF in 1993 and wanted to start out as a combat medic. After a two year formation he got deployed in a CDF camp at the Chernarussian-Takistani border. The daily routine consisted of assisting the doctors and taking care of CDF soldiers and locals. The CDF outpost was regularly attack by takistani rebels and Gustav gained a lot of knowledge on gunshot wound treatments due to the frequent raids and skirmished CDF patrols had to endure.
29th of April in 2000 was the moment everything changed. The CDF outpost was attacked by Takistani rebels and Gustav was heavely wounded. Luckily he managed to survive and got hospitalised at the Military hospital in Miroslavl. That's where he decided to take a last shot at the doctors exam, he had a lot of time to study whilst recovering. The third time was the cham and he passed it. He followed the 6 year course and graduated in 2006. After obtaining his Doctor's degree he decided to follow a two year course in emergency trauma care and specialised in field surgery. Gustav also followed an extensive courses in Nuclear, Biological and Chemical (NBC) patient care and treatment. He first got deployed in Takistan in 2012 after a chemical attack by the Pro Aziz Takistani Army.
In 2014 He came back to Miroslavl and after three months he got deployed to South Zagoria. He frequently travelled between military outposts, border outposts and military bases throughout South Zagoria to train, educate and help out CDF forces. Gustav was also part of a CDF research team that did extensive research on long wave radio frequencies at the radio facility in Tisy military base. The research team managed to discover a more efficient way of utilizing a mix of low and high frequency waves to their advantage. They performed extensive tests on animals and plants. They also discovered that these waves had an effect on high proton elements (HPE). It made the HPE particles a lot more unstable and caused them to react in ways that were still unknown to scientists. In 2016 the project was suspended, a handfull of scientist and CDF soldiers started showing symptoms similar to radiation sickness. The isssue was that not a single Radioactive element was used in the tests that the scientific team performed, or so they claimed.
Gustav and his team were dispatched to a compound north of the North-Western Airfield to treat and investigate the people struck by this mysterious radiation sickness. They were close to a scientific breakthrough when this mysterious outbreak took place and they were forced to set aside their research and help out the 93rd CDF brigade with evacuation.