Never got round to playing Leisure Suit Larry, joined Abandonia recently though...
@Star Gazer; yes it's definately got the look of a science vessel but more on an observational level I think, plus it looks too well funded, maybe a Naval research vessel? It's from a film or series I think?
@Commander McLane; Took that on board so went looking for possibilities, currently my idea I'm putting forward for discussion is this, instead of collecting water the tanker section fills up on oxygen and hydrogen, which it freezes (using pressurised helium, is that right?) as these components are piped in. The hydrogen and helium are collected by a specific farming tanker from around the star local to the planet that is being tarraformed, whilst the main tanker heads back to Q-Worlds HQ to harvest the oxygen, which is infact a planet.*(Note on this at end)
This main tanker's container is actually two, the other half of which will be filled with the frozen hydrogen by the secondary tanker when it returns to the active project, after which it re-attaches itself to the back of the main vessel, co-joining it's factory section. (The secondary tanker may dock and tops up the factory's helium supply, if needed, before filling the main tanker with the hydrogen)
These components will be used to make disks, the centre of which consists of the frozen hydrogen, encased within the frozen oxygen. As the disks enter the atmosphere the oxygen begins to melt first, delaying the reaction of the hydrogen until they are far enough into the atmosphere that the resulting products wont just float around in the stratosphere (is that true?). Obviously there is a huge explosion vaporising the disc and scattering water mist into the air.
This is partially done for safety reasons so that these discs never reach the planets surface and cause explosions or disruptive waves once there is enough water.
Sorry if there's wonky guess work science in that, correct me!
Here's some dodgey scribbles, I'll do some for the tanker/s and the ships joined up at some point, they were only quick so it's abit ugly at the mo..
* The Q-Worlds HQ was initially bought as a dead world from the systems government who sold it to them for a piffling sum, not knowing that it was for Q-Worlds but were easily mislead in to presuming the buyer was a half baked entrepenuer they had just conned. The planet was deemed worthless under a mining ban of the kind slapped on worlds so heavily scarred by activity that they are in danger of becoming unstable in their orbits due to weight change, and their surfaces prone to collapse and dangerous tremors as the gigantic gaping holes in their crusts collapse.
Once the deal was signed this goverment had to sit by and grind its teeth in silent fury as Q-Worlds turned it into a lush and never ending forest populated with every imaginable endangered species of plant and animal, receiving a preservation order from every race of notable conscience.
A large amount of funding is also received from charity organisations to keep these species safe.
This is their oxygen farm where huge tanks are kept full of the refined gas in readiness for the fleet of tankers to ship it out to the factory, (of course this is only if the world lacks water in its eco system).
The tanks are winched up to a refrigeration station in orbit where they are liquified and attached to the tankers.
Out of interest Q-Worlds also increases it's funding with a tourist resort in an unnaffected area of the planet, so this minor side industry demands the running of several cabaret acts, known as 'Breath Deep', but to more ingrained and long running staff, 'Don't Hold Your Breathe'.
Pirates bombing the city's with orbit canons and you must stop them 
(it's that powerful due to the high power outputl)
)
