I'm not so sure about this-bolt on SRMs are a key part of Elemental Shock right up there with battle claws and being nigh-invincible. Now, it's not a very big platform-but if it helps ZOCOM and every little bit helps, it can't hurt to develop it. That said, it is probably a tiny project with a small impact.The problem is that doing 4-5 R&D projects means spending 4-5 dice, and we have a lot of other priorities. Like SADN and navy laser refits (both of which need doing between, say, now and mid-2063 or so). Like Orca and Hammerhead wingman drones. Like some other stuff I'm probably forgetting. We don't actually have a lot of wiggle room, so fitting 4-5 "it would be nice ifs" alongside everything else is a toughie.
As for the specific projects:
[ ] Zone Defender Revision (Platform)
The Brotherhood of Nod's Black Hand Armor systems are strong combat assets, with massive slabs of heavy armor over a power assisted frame. The Zone Defender shares much of its goals with the Black Hand's approach, and design studies and prototyping will begin preparing for a better defended and cheaper version of the design, likely an aid to mass deployment of Zone Armor, especially for second and third line forces.
(Progress 0/40: 15 resources per die)
This is something we probably need- because it actively improves our ability to deploy the suits for Ground Force, rather than being an optional upgrade that makes the suits more complex and expensive and thus less suitable for mass deployment.
[ ] Infantry Recon Support Drone Development (Platform)
One advantage of the Zone Armor is that every man has a significantly more powerful radio than could be given to any infantry force. While long range drone operations are significantly contraindicated by the nature of Red Zone environments, small "pop up" drones should provide advanced reconnaissance, and act as forward sensor platforms.
(Progress 0/40: 10 resources per die)
This is an "it would be nice to have" for Ground Force power armor units- give our power armor troops their own equivalents of the Switchblade drone. Pairs well with Advanced ECCM. This also specifically helps with ZOCOM missions: they have few warm bodies, so doing forward recon and sentry roles is difficult for them and makes it more likely for them to take a trickle of casualties they can ill afford. Drones help with that. Ground Force needs this less because Ground Force formations are more extensively supported by air and land-based recon assets.
On the other and, operating the drones will require additional training, which is a problem for Ground Force because they have to operate on a much larger scale. I'm in favor of it, but am not in favor of delaying rollout of the armor to ensure that it is available. We can do this in, say, 2062Q1 and let the factories and training facilities gradually retrofit the capability in; we don't need every individual power armored Ground Force trooper to have one of these for them to be helpful, after all.
[ ] Backpack Rocket Launcher Development (Platform)
With the Zone Operations Command ever more intensely engaged with the Brotherhood of Nod, backpack systems are one of the easier ways to substantially increase firepower. While not always the most convenient location, by shifting around the power pack somewhat, nearly any Zone Operations Command unit can have a limited supply of short to mid range indirect fire options at their disposal.
(Progress 0/50: 10 resources per die)
This is not something Ground Force actually needs. ZOCOM arguably needs it because they go into combat environments where the full array of GDI's heavy armor and artillery support cannot follow and where even air support is often endangered by ion storms. But GDI's regular line infantry, who even when wearing power armor are constantly supported by a wide variety of dedicated heavy weapons teams and AFVs, do not really need this system to the same degree.
[ ] Zone Lancer Development (Platform)
A variant of the Marauder suit refitted with a personal plasma gun, the Zone Lancer is intended to augment and support the already extremely capable antiarmor capacity of the Initiative's Zone Armored forces, and provide a viable replacement for the Marauder's limited ammunition.
(Progress 0/40: 15 resources per die)
ZOCOM, again, has real problems getting enough heavy firepower to the point of contact in their usual operations, which motivates the creation of a plasma-armed variant of their existing heavy weapons Zone suit. However, anything with plasma guns is unlikely to be something we can deploy on a mass scale for the Ground Force, so this is unlikely to help.
So of the four available power armor projects, one (Defender) is something I want to do Real Soon in preparation for Zone Armor factory construction, because simplifying production is something you do before you mass-produce. And one (drones) is something I could see doing along with construction, because it's a useful "extra" capability but one that is not a mission requirement for what Ground Force specifically requires- it is closer to a mission requirement for ZOCOM, which is why they want it, but less so for Ground Force.
The other two (backpack rockets and Lancers), while nice, are much more likely to only see service with ZOCOM proper.
Now let's get to my real concerns, Defenders vs Lancers. Our first phase of ZA factories is for the elite, spearhead units of the army. It is noteworthy in that Defenders are almost completely absent from this phase of factories. The Zone Defender might have a few lines for these units-it's pretty effective at mulching light infantry, but little else. The Zone Lancer, on the other hand, is very much an elite suit, offering similar DPS in anti-armor form to our railgun equipped ZA but with higher rate of fire and less overkill of light targets I believe. Furthermore, this plasma gun is specifically called out by Ithillid as one key to getting our energy-guns out there in the field. I think you've taken the fact that we had to ration our plasma missiles and put that on our beam weapons, and while there might be some STU costs here, I think it far more likely that a weapon fundamentally based on a personal ion cannon from the 1990s is going to be made with only earth-native materials. Additionally, there might be a new Zone Lancer pilot plant just for Zocom to use, but I'm not sure if it's going to happen or not.
Zone Defenders, on the other hand, primarily are used by ZOCOM to replace their foot infantry and I had an actual talk with Ithillid about what kind of cost savings the Defender Refits get us-they drop in price 'in game' from 1100 credits to 950, according to a squid. That's going to add up in large lots, but it's nothing like a doubling-more like a 'buy nine, get the tenth free' deal. So since ZOCOM uses more of them, and the Ground Forces ZA factories make relatively fewer of them, it seems more like something to bump ZOCOM up at the current moment. Of course, the third or fourth phase of factories probably makes LOTS of defenders. For now though, it's a somewhat marginal upgrade given the scale of production.
My personal ranking of ZOCOM's projects without at least three GFZA plants would be 1) Drones, 2) Lancers, 3) Defenders, 4) rocket launchers. With ZA plants, it goes to 1) Lancers, 2) Defenders, 3) Drones, and 4) Rocket Launchers.