Well, I'm afraid that we won't be able to say much about hacks we've seen, as our forte is giving support when technical difficulties pop up...
About motivation of hackers... as a former server admin in few old shooters, I would say that there are three main reasons:
1) Making yourself feel better (the usual mindsets are 'I am a pro' and 'I feel good when I wreck people without any effort")
2) Making others mad (Aimbot users dominate in this group)
3) Pretending to be a better player than you really are (people with this mindset use hacks which usually are more difficult to spot, like radar, wallhack etc.)
Obviously enough, I really don't recommend tweaking your game in any way... it's rule-breaking no matter how you look at it.
Also, for future use, you can report suspected cheaters. To do it, you will need this information:
- Time & Date
- The server where cheater appeared
- Number of people present on the server when it happened (a screenshot will do)
- A proof (recording)
- ID or gamertag of suspected hacker
Then go to http://help.ea.com/en/contact-us/new/?subject=cheating&product=plants-vs-zombies-garden-warfareand and select your platform. Then choose "Report Cheating/Harassment" in topic box and write "Reporting a cheater [day when it happened]" in "Please tell us a little more about your issue" box.
When you see available contact options pick "Email me" and write your report. Generally it should follow this scheme:
Name of the Cheater:
Origin ID:
Xbox GamerTag:
Date:
Time:
Server:
Which Map:
Link to youtube or twitch:
Link to screenshot:
