The best package for Resin Repair is this:
A bit of Warhammer History from Wikipedia:
"In 1983, Games Workshop released a fantasy-themed wargame called Warhammer, and it proved such a success that the company asked its designer, Rick Priestley, to develop a science fiction version of it. Since before joining Games Workshop, Priestley had been privately working on a science fiction tabletop game
called "Rogue Trader". Priestley added Warhammer elements such as magic and science fiction counterparts to Elves and Orcs. Warhammer 40,000: Rogue Trader was released in 1987. The first edition of the game was more of a roleplaying game focusing on small skirmishes, with an umpire overseeing the players. Priestley realized that players wanted a proper wargame rather than a roleplaying game, and in the second edition the umpire was removed and the players were allowed to deploy more warriors.[1] Warhammer 40,000 became even more successful than its fantasy precursor, and soon Games Workshop released a range of spin-off games such as Necromunda, Battlefleet Gothic, and GorkaMorka."
Mister Glue will bond your plastic, resin and metal miniatures. It is an excellent glue for plastic Citadel Miniatures.
It will glue metal well but there are a couple of cautions.
The surface areas must match up well and be free of oils. A bit of emery but not enough to change the shape. Mister Glue is a cyanoacrylate (super glue) and sets up very quickly on all kinds of materials.
It is an industrial glue - the solvents have been distilled out making it stronger. It dries clear and flexible - not that flexible is an issue with Warhammer. Also, because there are no solvents you do not have the problem of the glue drying out in the bottle. It can last over a year and if kept in the freezer or refrigerator much longer than that.
Before you apply the glue make sure you know where you are going. Practice putting the two pieces together. Put a very small amount of glue on one side. Then press the two pieces firmly together. Some glue may squeeze out. Leave it until it dries up a bit and scrape off. If you try and wipe, it will smear.
If you are going to use the Accelerator, (might be wise on metal), apply that on one side first and leave for about 20-30 seconds. Apply Mister Glue to the other side then press the two pieces firmly together. As I mentioned earlier, the tighter the fit, the better the bond. This is CA glue and as such reacts to small amounts of moisture. It should be very fast to bond but full cure time can be hours. Plastics can be odd. I've had some set up in 2-3 seconds and others take a couple of minutes. The majority are very quick.
If you end up have to fill gaps, Mister Glue won't do. So, use it to put the two pieces together, then use some fine powdery material as a filler and add the glue. I've used anything from sawdust for wood projects, to baking soda to filing plastic to create plastic filler. Put the 'filler' into place and add a drop of glue. It will soak in and almost immediately make the filler solid, bonding to both sides. Experiment.