Hmmm... This will get you banned if you use it online, no? Should probably only use it in Practice Mode.
If you cheat like a gentleman nobody will ever know but, to be honest, I find the AI much better than most online players and after you reach level 55 on your 10th Prestige rank like I did you may find that cheating in online games is overkill. Thanks to the trainer I learned the game so well that I don't even use it anymore and so will you if you keep playing and experimenting with skill combos.
Couldn't find the quote button.. so I'll just reply this way and hopefully you see.
What do you mean exactly by cheat like a gentleman? I mean, I do understand, but people will still find out, no? I would, either way, only use the Unlimited Solar and maybe Heal myself when I go into Stealth with Leon. Only teammates could see, right? Or does it show a Leon when he's being healed even when he's cloaked? i.e when you take damage when you're cloaked, people see the numbers. do you see the healing numbers?
And, I saw one person using either this trainer or one similar to this, when the game started he had bought multiple things for his Leon, but later on when he was around level 15-20 it looked normal, but if anyone caught it at the beginning they probably screenshotted.