My experience with Inaer Italy (generically, not Congo focused) is that they do things on the fly, are poorly organised and the pay is not enough to make up for it. Thus what looks like a good job in this market is highly likely to be not what was promised @ interview and many people would rather get some hours in and then leave than stick around.
By way of example, a friend of mine (who was there) said when they arrived to take the CHC work for ENi in Moz about 18 months ago, they didn't have any GSE or tooling for their 139s, they turned up with half the required number of crew, offered the CHC guys jobs (who turned them down) and offered CHC $15k for their office furniture, (they had none and no access to buy any locally - CHC gave it to the local orphanage). Their ac were also on different registrations which was the source of much mirth.