ok, i managed to bake some lowlevel trainer. it does only one thing - removes weight limit for a campaign. trainer was built using data from the CoSMOS forum's post Link and using this site tutorial. link to a trainer - Link.
archive contains a trainer and a .CT file for any person who wants to make his own trainer.
trainer usage:
1. start trainer.
2. launch game from trainer - press "Launch" button and choose an mw4mercs.exe executable file.
3. start new campaign or load existing save.
4. before entering "mechlab" press "NumPad 1".
5. here you go.
trainer tested by me on MW4Mercenaries MekPak 3.1.0027 running under Windows 7 Ultimate x86 English - for me works fine. if you want to add any new feature - feel free to use .CT file and do with it whatever you want
p.s. bug spotted - trainer don't work if there is no disk in optical drive.
[Edited by raven128, 11/5/2010 9:50:09 AM]
What launch button?