Lets assume that I have enough more than enough resources to achieve any goal. So what would be the best way to supply an advancing army?
1. Truck, Rail or some combination ?
Depends on the distance. Trucks can go a long, long way - remember you don't need 100% of the logistical points to reach the front, you need enough to supply your units. In addition, a unit's supply line can go some hexes back (~5) in order to get supplies. A lvl 3 truck station (110 AP *2 = 22 hexes) plus a lvl 1 supply depot (50 AP = 5 hexes) can supply units up to 30 or so hexes away from the last time the AP got refocused. That's quite a good distance.
And that is with dirt roads. With sealed roads that increases to: 110AP = 30 hexes, 50 AP = 7 hexes, +7 hexes intrinsic = 44 hexes.
In most games supplying units only with truck points was more than enough. I do have two games going right now where the front is simply too far away (and no cities in between) where I actually am using rail to supply parts of the front.
2. If rail, then railheads or rail stations, and how far apart?
A rail head near the front. They get built in a single turn. You can build multiple rail heads as your front advances and simply close or mothball the old ones. Again, note that you do no need to get 100% of rail points to the front. That means that a Rail station lvl 1 (100 AP) can get supply to units up to 55 hexes away.
3. Should I use any trick to avoid logistical point loss e.g. set rail stations outside the mainline and use traffic sign to avoid AP loss due merge.
I haven't really seen this be necessary. Overall, units don't use up THAT much logistical points. Fuel is free, ammo is free once you have energy weapons, so only food and reinforcements (by the SHQ as well as strategic movement of other units) are left after that.
Sure, but this is mainly a reactive measure that allows you to manage resources when you have shortfalls. I want a proactive measure, to designation of a strategic asset to be supplies first no matter what, and if there are no problems than business as usual.
If you have a road line that goes to the front, which has no cities on it - then all logistical points on that line can only be used by the units at the front. In the logistics tutorial thread I posted how I use it to guarantee stuff reaching the front by bypassing cities.
Theoretically, you could also play around with the SHQ logistics limits, but you should be very careful doing that. I posted a few thoughts and tips about that as well.
< Message edited by DTurtle -- 1/24/2021 11:38:23 AM >