Here's the mod for the drop pod deployment. There are a couple of things in there that need explaining: First of all, I used blank sprites for the walls/objects on the drop pod maps that get blown away by the explosive charge upon landing; this is because of the OXCE+ code I'm testing that prevents the entire map block for the player's craft from being revealed at the start of battle. With this code, the player will only see the interior of the drop pods until the charge explodes. Without it, it will just look like the normal drop pod map but you can't move out until you 'land'. Next, I made this landing 'explosive' damage units with a new damage type to simulate the harshness of the landing impact. I thought it was somewhat silly that regular humans like guardsmen could survive the rigors of orbital drops without a scratch, so any guard deployed in these pods will likely be heavily wounded. Better armor like carapace or that worn by the Adeptus Sororitas will somewhat lessen the impact, but they'll still likely be wounded. Marines on the other hand should have no trouble surviving this - they take only 20% damage from the impact, so they might have minor scratches but no wounds in scout armor, and be completely impervious to it in power armor. I also tweaked the drop pod MCD a bit, since most of the ramp blocks has 90 HE block - this made it nearly impossible for explosions to propagate around the pods and was necessary to remove for the deployment charges to function correctly.
In a separate ruleset I imported the Dragonfly map Solarius Scorch uses in XCF to act as a Valkyrie - if the Imperial Guard can't use drop pods, then they need some kind of transport. The idea eventually is that drop pod deployment should be rather expensive compared to regular transports to make up for the quick global response time and the disruptiveness of the deployment from orbit. I also changed the starting base craft and soldiers a bit to match this - one of the interceptors is switched for a Valkyrie, and it's filled with 8 Guardsmen armed with their lasguns, while the drop pods have 4 marines with the standard equip. This part is just a suggestion and is for showing off the difference between drop deployment and valk deployment.
Finally, there's a ruleset that I added temporarily to fix the pedia palette for craft articles in the new OXCE+ - you can disregard that as I'm sure you've already been working on re-doing the interfaces ruleset for the articles.