Sure, here is your rapid response in a markdown format:

1. Tips for successful applicants:

   • First, tailor your CV to clearly highlight your degree in Environmental Science, or any equivalent area. Explicitly mention any OSHEMAC qualifications if you have them.
   • Secondly, emphasize your 5-years of work experience. In my experience, the mining and construction industries value hands-on practice over theoretical knowledge.
   • Also, don't forget to highlight any experience in the construction industry. This might give you a competitive advantage.
   • Furthered by this, pay attention to your email application; write a succinct and professionally engaging letter.
   • Lastly, please do not neglect to enter the job title into the email subject line as specified in the job offer in order to avoid your application being overlooked or getting lost in other emails.

2. Areas candidates should particularly note:

   • The crucial fact is this - the deadline for application is 27 November 2023; do not be a late applicant.
   • Orchestrating your CV and application letters to reflect specific requirements listed in the job advert.
   • Ensure to submit application and necessary documents through email. Some job vacancies in Zimbabwe can have multiple application routes but this is specific about using email.
   • If you lack some of the criteria, focus on your strongest areas when applying, and consider the added value you can bring that might be outside the specified criteria.
   • If you lack OSHEMAC qualification, do your research. Find suitable courses online, and indicate in your application your willingness to pursue this qualification if successful.

3. Standing out in the application pool:

   • What I have noticed overtime is that putting in the extra effort for noteworthy cover letters helps you stand out. Highlight your achievements and future potential.
   • Showcase transferable skills. For niche roles such as this, often the soft skills and past work experiences can help differentiate you.
   • If possible, provide quantifiable evidence of past achievements. Real-world evidence of your abilities can make a significant impact on prospective employers within the various employment opportunities in Zimbabwe.

4. Common oversights novice applicants make:

   • The phrase 'or equivalent' in the qualifications section is often overlooked. No specified degree is a rigid prerequisite. If a candidate has a similar qualification, their application could be just as relevant.
   • Frequently, in my experience, applicants do not take full advantage of the 'advantages' listed in job adverts. If you have these extras, it can significantly bolster your application, like the OSHEMAC qualification or experience in the construction industry in this case.
   • Lastly, the subtleties in the application process can often be missed. Including the job title in the subject line of the email is crucial to ensure your application doesn’t disappear into an HR black-hole.

Looking for jobs in Zimbabwe or vacancies in zim can be challenging, but with attention to detail, a strong application strategy, and perseverance, it's achievable. Good luck with your job search in Zimbabwe.