How do you unlock the geth infiltrator in mass effect 3 I bought 14 spectre packs and I didn't get the engineer or infiltrator?

To unlock the Geth Infiltrator in Mass Effect 3, you need to acquire it through the multiplayer mode by either purchasing Spectre Packs or by unlocking it through gameplay. If you've bought 14 Spectre Packs without success, remember that the chances of obtaining specific characters can be random. You might want to keep trying with more Spectre Packs or participate in events and challenges that can increase your chances of unlocking different classes. Additionally, consider checking online resources or communities for tips on efficient ways to unlock characters.