The 39th Battalion is an ARMA 3 Simulation Clan. Established in early 2013, the 39th Battalion Arma Clan fosters the memory of Australian Infantry soldiers who famously defended against the advance of the Japanese Imperial Army over the Stanley Ranges of Papua New Guinea during World War 2.

In observance of their sacrifice, the 39th Battalion Arma Clan pursues all available Arma 3 and community wide resources, in concurrence with historical and modern military procedures in order to model ourselves on the proud men and women who serve in Australia’s Defence Forces.

We implement realistic tactics, techniques, and procedures for our members, but we do not ask our members to do things like address other members by any title or salute in-game.

Our Operations

39BN runs a storyline driven campaign once a week, these are our main mission nights which are every Sunday night starting from 1900 AEST.

Our campaign runs over an 8 week duration, when a campaign has been completed, we will have a breaker mission than another campaign will be created to keep things fresh.

Expect to see something new from our mission making team each week.

We mostly play as infantry, but from time to time, we will have combined arms elements as support.

Every Friday night is our beer and bullets night, we either play Escape From missions or a custom mission one of our members has created, these nights are designed to have a very laid back atmosphere.

What we are looking for in a member

  • Must be over 18 although exceptions can be made.
  • Must be respectful of others, as we are a group of all ages.
  • Emotional maturity, no drama we all play video games and enjoy them!
  • Weekly attendance for Sunday Operations as they are mandatory.

What to expect

  • FNGs (Fairly New Guys) are required to attend a minimum of 4 Sunday missions over an 8 week period to be accepted into the clan.
  • As a member of the clan, you are required to maintain a minimum 50% attendance rate for Sunday Operations, if you are unable to do so, you will be retired from the group.
  • Fill out the Sunday Attendance signup sheet on your attendance which is either No, Yes, Unsure or Late, this provides the mission maker the info needed on how to design the mission.


  • Required to own ARMA 3 (base game only)
  • Required to use Teamspeak 3.
  • Required to having a working & clear microphone.
  • Required to have Discord, as this is our primary communications tool to keep players informed of upcoming events in the group.
  • Required to use Arma3Sync to access our mods.


39BN uses RHS, ACRE 2, ACE3, Project Uncut and an assortment of other mods packed into our own modset, which isn’t available on the steam workshop. All the mods are available via our own Arma3Sync repository.

From time to time, we will use a total conversion mod that is fitting to Australian operations like a Vietnam campaign using the Unsung Mod or WW2 pacific.


We do not require you to own any ARMA 3 DLCs to play our Sunday Operation missions although missions on other nights may require them.

How to Join

You can fill out your application here. Once you have completed that then join our discord server and message one of the available Administrators of the clan which will begin the interview process.