So the rules say that a unit must deploy with their entire base in the deployment zone, but the tank's base is longer than a range one ruler. I assume that means that it must deploy sideways or at an angle when it's limited to range one deployment, but X-wing had rules about larger ships being able to be out of the initial deployment area as long as it was touching the back of the deployment zone. Since the tank wasn't out when the last rules reference was made, have then been any rulings about this that go against the standard "completely within the boundary of a deployment zone" of the RR?

It is only range 1 on some, while some like "Long March" & "Major Offensive" are much larger allowing you to position it forward... though even facing sideways for you could be someone elses forward, vice versa. Additionally, there was a big post about this some threads down, please feel free to look into it.

7 minutes ago, AlKusanagi said:

So the rules say that a unit must deploy with their entire base in the deployment zone, but the tank's base is longer than a range one ruler. I assume that means that it must deploy sideways or at an angle when it's limited to range one deployment, but X-wing had rules about larger ships being able to be out of the initial deployment area as long as it was touching the back of the deployment zone. Since the tank wasn't out when the last rules reference was made, have then been any rulings about this that go against the standard "completely within the boundary of a deployment zone" of the RR?

Nothing I've seen, so tank has to be deployed at an angle for some of the deployments. The last RRG added the new rules for the tank and speeder, so that's when FFG should have updated the RRG if they were going to change the deployment rules (they have missed things in the past though, like Armament).