This was just a random idea that came to me, we all know the issue with balance and laser weapons (infinite ammo mainly) ... and I've seen the idea of 'laser' clips down. But part of me feels this takes something away from the laser's character and what makes it different.
Internal Power Supply
Hows this different from clips? Well I picture it as laser weapons have no clips, but have a preset amount of "power". Shots take up power, simple enough ... since a new clip can't be loaded in these power supplies will regenerate every turn. So say a shot costs 1 power and you regenerate 2 power per turn ... you could get off a couple of snap shots/aimed shots and be fine, but unloading 3 or more or a bunch of autoshots greatly saps your power and can leave you with not enough at a crucial time.
Afraid I'm entirely new to the whole openxcom scene, let alone modding so I'm not sure how doable this is, but thought I'd throw the idea out at least.